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• #1 Jellyfish stings – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/symptoms-causes/syc-20353284

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems. […] Seek emergency treatment if you have severe symptoms. See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #2 Jellyfish stings | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/jellyfish-stings?content_id=CON-20311564

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. The long tentacles trailing from the jellyfish can inject venom from thousands of microscopic barbed stingers. […] Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems.

• #3 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Jellyfish stings are sea creatures. They have nearly see-through bodies with long, finger-like structures called tentacles. Stinging cells inside the tentacles can hurt you if you come in contact with them. Some stings can cause serious harm. Almost 2000 species of animals found in the ocean are either venomous or poisonous to humans, and many can produce severe illness or fatalities. […] Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating.

• #4 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #5 Jellyfish stings – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/symptoms-causes/syc-20353284

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems. […] Seek emergency treatment if you have severe symptoms. See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #6 Jellyfish stings – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/symptoms-causes/syc-20353284

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems. […] Seek emergency treatment if you have severe symptoms. See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #7 Jellyfish stings | Health Library | Memorial Health System

  https://www.mhsystem.org/health-library/con-20311564/

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. The long tentacles trailing from the jellyfish can inject venom from thousands of microscopic barbed stingers. […] Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases theyre life-threatening. […] Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain, Welts or tracks on the skin a print of the tentacles contact with the skin, Itchiness (pruritus), Swelling, Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting, Headache, Muscle pain or spasms, Faintness, dizziness or confusion, Difficulty breathing, Heart problems.

• #8 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #9 Jellyfish stings – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/symptoms-causes/syc-20353284

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems. […] Seek emergency treatment if you have severe symptoms. See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #10 Gallery of Jellyfish Sting Pictures

  https://www.verywellhealth.com/jellyfish-sting-pictures-4020349

  Jellyfish stings are a common cause of emergency room visits in tropical coastal areas. Jellyfish stings leave a distinctive print of tentacles leaving narrow trail marks. Jellyfish have tentacles with thousands of stinging cells called nematocysts. They fire toxins when you bump or brush against them. […] These stings cause skin irritation, pain, blisters, and skin necrosis or cell death. People who’ve been stung may have weakness, fever, chills, muscle spasms, nausea, and vomiting. In rare cases, some types of jellyfish, such as the Chironex fleckeri box jellyfish in Australia, can cause paralysis and death. […] The severe pain and burning from a jellyfish sting lasts about an hour or two. As the pain subsides, it typically begins to itch. The itching can last for a week. […] Jellyfish stings have a distinctive look. The sting often leaves a „print” of the tentacle. You may see red, brown, or purple track marks on the skin. Along with the marks, you may feel burning, prickling, or stinging, itching, swelling, and a throbbing pain shooting up a leg or arm.

• #11 Gallery of Jellyfish Sting Pictures

  https://www.verywellhealth.com/jellyfish-sting-pictures-4020349

  Jellyfish stings involve thousands of jabs, each of which releases toxins. They can cause pain, swelling, redness, and itching. For some people, they can also cause an allergic reaction that can be life-threatening. […] To tell a jellyfish sting from other sea creature stings, look for narrow trails of tentacle marks. A wide trail or one with random clusters is likely to be the sting of a different creature. […] You’ll need to remove any stingers left in the skin. If the sting isn’t severe, it can probably be treated at home with distilled white vinegar, a hot water soak, or both. If you start to have breathing problems, a racing heartbeat, or swelling, it’s time to go to an urgent care clinic or the emergency room.

• #12 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Jellyfish stings can induce a spectrum of symptoms that vary in severity, encompassing skin injuries, acute systemic venom effects, delayed indirect sequelae, and even fatality, causing significant distress to patients. Among these manifestations, the occurrence of skin lesions following jellyfish stings is prevalent and substantial. These lesions are characterized by evident blister formation, development of bullae, subcutaneous hemorrhage, erythema, papules, wheal, ecchymosis, and ulceration or skin necrosis. Local cutaneous manifestations may persist for several weeks or even months after the initial sting. Despite aggressive treatment, many skin injuries still result in significant pigmentation or scarring after recovery. […] Most cutaneous manifestations and signs caused by jellyfish stings are nonspecific among the various classes. Generally, jellyfish stings start with feeling a prick, followed by subsequent swelling and burning or numbing sensations. Subsequently, the sting rapidly induces erythema, papules, wheals, or jellyfish tentacle-like lesions characterized by linear, rope-like or whip-like marks accompanied by significant pain and itching. In severe cases, the skin develops obvious blisters, subcutaneous bleeding, and even ulcers or necrosis. The local symptoms last 12 weeks or even several months. Despite proactive treatment, most stings leave noticeable skin pigmentation changes or scarring.

• #13 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Jellyfish stings can induce a spectrum of symptoms that vary in severity, encompassing skin injuries, acute systemic venom effects, delayed indirect sequelae, and even fatality, causing significant distress to patients. Among these manifestations, the occurrence of skin lesions following jellyfish stings is prevalent and substantial. These lesions are characterized by evident blister formation, development of bullae, subcutaneous hemorrhage, erythema, papules, wheal, ecchymosis, and ulceration or skin necrosis. Local cutaneous manifestations may persist for several weeks or even months after the initial sting. Despite aggressive treatment, many skin injuries still result in significant pigmentation or scarring after recovery. […] Most cutaneous manifestations and signs caused by jellyfish stings are nonspecific among the various classes. Generally, jellyfish stings start with feeling a prick, followed by subsequent swelling and burning or numbing sensations. Subsequently, the sting rapidly induces erythema, papules, wheals, or jellyfish tentacle-like lesions characterized by linear, rope-like or whip-like marks accompanied by significant pain and itching. In severe cases, the skin develops obvious blisters, subcutaneous bleeding, and even ulcers or necrosis. The local symptoms last 12 weeks or even several months. Despite proactive treatment, most stings leave noticeable skin pigmentation changes or scarring.

• #14 Jellyfish Sting in Children | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/symptoms/jellyfish-sting/

  The creature’s stingers inject venom into the human skin. This is what causes the symptoms. The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] Local Reactions are most common. Symptoms are raised, red lines that cross each other. The sting causes pain or burning at the site. Sometimes hives in the sting area occur. Blisters can occur in severe cases. Severe pain lasts 1-2 hours. Itching may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] General Reactions can occur if there are many stings. More stings give a higher dose of venom. Large venom symptoms are vomiting, dizziness, weakness and headache. […] Anaphylaxis (A severe allergic reaction). Life-threatening reactions are very rare with the stings. Most are caused by box jellyfish found in the South Pacific and Australia. The main symptoms are trouble breathing and swallowing, along with hives. It starts rapidly, most often within 20 minutes of the sting. […] Severe burning pain will lessen within a few hours. Itching may last for a week. Red lines from the tentacles may last 1-2 weeks.

• #15 Jellyfish Sting – Akshar Pediatrics

  https://www.aksharpediatrics.care/illnesses-symptoms/jellyfish-sting/

  The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] The sting will cause pain and swelling where the tentacles of the jellyfish touched the skin. The rash is red and swollen. […] Severe pain lasts 1-2 hours. Itch may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] More severe stings: Blisters appear within 6 hours. You should be seen by a doctor if blisters appear. […] Minor stings: Severe burning pain will lessen within 1-2 hours. Red blotches and lines often improve in 24 hours. Red lines may last 1-2 weeks.

• #16 Jellyfish Sting

  https://www.greatcaringdocs.com/is-your-child-sick/Jellyfish-Sting

  The creature’s stingers inject venom into the human skin. This is what causes the symptoms. The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] The venom is what causes all the symptoms. […] Local Reactions are most common. Symptoms are raised, red lines that cross each other. The sting causes pain or burning at the site. Sometimes hives in the sting area occur. Blisters can occur in severe cases. Severe pain lasts 1-2 hours. Itching may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] General Reactions can occur if there are many stings. More stings give a higher dose of venom. Large venom symptoms are vomiting, dizziness, weakness and headache. […] Anaphylaxis (A severe allergic reaction). Life-threatening reactions are very rare with the stings. Most are caused by box jellyfish found in the South Pacific and Australia. The main symptoms are trouble breathing and swallowing, along with hives. It starts rapidly, most often within 20 minutes of the sting. […] Severe burning pain will lessen within a few hours. Itching may last for a week. Red lines from the tentacles may last 1-2 weeks.

• #17 Jellyfish Sting – Akshar Pediatrics

  https://www.aksharpediatrics.care/illnesses-symptoms/jellyfish-sting/

  The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] The sting will cause pain and swelling where the tentacles of the jellyfish touched the skin. The rash is red and swollen. […] Severe pain lasts 1-2 hours. Itch may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] More severe stings: Blisters appear within 6 hours. You should be seen by a doctor if blisters appear. […] Minor stings: Severe burning pain will lessen within 1-2 hours. Red blotches and lines often improve in 24 hours. Red lines may last 1-2 weeks.

• #18 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Jellyfish stings can induce a spectrum of symptoms that vary in severity, encompassing skin injuries, acute systemic venom effects, delayed indirect sequelae, and even fatality, causing significant distress to patients. Among these manifestations, the occurrence of skin lesions following jellyfish stings is prevalent and substantial. These lesions are characterized by evident blister formation, development of bullae, subcutaneous hemorrhage, erythema, papules, wheal, ecchymosis, and ulceration or skin necrosis. Local cutaneous manifestations may persist for several weeks or even months after the initial sting. Despite aggressive treatment, many skin injuries still result in significant pigmentation or scarring after recovery. […] Most cutaneous manifestations and signs caused by jellyfish stings are nonspecific among the various classes. Generally, jellyfish stings start with feeling a prick, followed by subsequent swelling and burning or numbing sensations. Subsequently, the sting rapidly induces erythema, papules, wheals, or jellyfish tentacle-like lesions characterized by linear, rope-like or whip-like marks accompanied by significant pain and itching. In severe cases, the skin develops obvious blisters, subcutaneous bleeding, and even ulcers or necrosis. The local symptoms last 12 weeks or even several months. Despite proactive treatment, most stings leave noticeable skin pigmentation changes or scarring.

• #19 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Certain clinical characteristics of the lesion may raise suspicion regarding which Cnidaria class is responsible. For instance, Scyphozoan stings can cause jellyfish-shaped erythematous lesions, Hydrozoa stings can result in a linear rash with a string of beads appearance, and Cubozoan stings can leave whip-like marks that are relatively wide and cross-hatched, accompanied by a frosted appearance caused by superficial skin necrosis. Seabathers eruption (SBE), an acute dermatitis, is noteworthy, especially when caused by the thimble jellyfish Linuche unguiculata, Linuche aquila, and, rarely, the sea anemone Edwardsiella lineata. Recurrent eruptions subsequent to the initial stings have been reported to be caused by Pelagia noctiluca, Rhizostoma pulmo, and Aurelia aurita.

• #20 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Certain clinical characteristics of the lesion may raise suspicion regarding which Cnidaria class is responsible. For instance, Scyphozoan stings can cause jellyfish-shaped erythematous lesions, Hydrozoa stings can result in a linear rash with a string of beads appearance, and Cubozoan stings can leave whip-like marks that are relatively wide and cross-hatched, accompanied by a frosted appearance caused by superficial skin necrosis. Seabathers eruption (SBE), an acute dermatitis, is noteworthy, especially when caused by the thimble jellyfish Linuche unguiculata, Linuche aquila, and, rarely, the sea anemone Edwardsiella lineata. Recurrent eruptions subsequent to the initial stings have been reported to be caused by Pelagia noctiluca, Rhizostoma pulmo, and Aurelia aurita.

• #21 Jellyfish stings – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/symptoms-causes/syc-20353284

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems. […] Seek emergency treatment if you have severe symptoms. See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #22 Jellyfish stings | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/jellyfish-stings?content_id=CON-20311564

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. The long tentacles trailing from the jellyfish can inject venom from thousands of microscopic barbed stingers. […] Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain; Welts or tracks on the skin a „print” of the tentacles’ contact with the skin; Itchiness (pruritus); Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Faintness, dizziness or confusion; Difficulty breathing; Heart problems.

• #23 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #24 Jellyfish stings | Health Library | Memorial Health System

  https://www.mhsystem.org/health-library/con-20311564/

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. The long tentacles trailing from the jellyfish can inject venom from thousands of microscopic barbed stingers. […] Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases theyre life-threatening. […] Most jellyfish stings get better over a few days or weeks with home treatment. Severe reactions likely need emergency medical care. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain, Welts or tracks on the skin a print of the tentacles contact with the skin, Itchiness (pruritus), Swelling, Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting, Headache, Muscle pain or spasms, Faintness, dizziness or confusion, Difficulty breathing, Heart problems.

• #25 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #26 Jellyfish stings

  https://www.mymlc.com/health-information/diseases-and-conditions/j/jellyfish-stings2/

  Jellyfish stings are relatively common problems for people swimming, wading or diving in seawaters. The long tentacles trailing from the jellyfish body can inject you with venom from thousands of microscopic barbed stingers. […] Jellyfish stings vary greatly in severity. Most often they result in immediate pain and red, irritated marks on the skin. Some jellyfish stings may cause more whole-body (systemic) illness. And in rare cases jellyfish stings are life-threatening. […] Common signs and symptoms of jellyfish stings include: Burning, prickling, stinging pain; Red, brown or purplish tracks on the skin — a „print” of the tentacles’ contact with your skin; Itching; Swelling; Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Signs and symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting; Headache; Muscle pain or spasms; Weakness, drowsiness, fainting and confusion; Difficulty breathing; Heart problems.

• #27 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #28 Jellyfish stings | Health Library | Memorial Health System

  https://www.mhsystem.org/health-library/con-20311564/

  The severity of a reaction depends on: The type and size of the jellyfish, The age, size and health of the person affected, with severe reactions more likely in children, How long the person was exposed to the stingers, How much of the skin is affected. […] Seek emergency treatment if you have severe symptoms. […] See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #29 Jellyfish stings

  https://www.mymlc.com/health-information/diseases-and-conditions/j/jellyfish-stings2/

  The severity of your reaction depends on: The type and size of the jellyfish; Your age, size and health, with severe reactions more likely in children and people in poor health; How long you were exposed to the stingers; How much of your skin is affected. […] Seek emergency treatment if you have severe symptoms.

• #30 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating. […] SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating.

• #31 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Jellyfish stings are sea creatures. They have nearly see-through bodies with long, finger-like structures called tentacles. Stinging cells inside the tentacles can hurt you if you come in contact with them. Some stings can cause serious harm. Almost 2000 species of animals found in the ocean are either venomous or poisonous to humans, and many can produce severe illness or fatalities. […] Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating.

• #32 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating. […] SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating.

• #33 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Jellyfish stings are sea creatures. They have nearly see-through bodies with long, finger-like structures called tentacles. Stinging cells inside the tentacles can hurt you if you come in contact with them. Some stings can cause serious harm. Almost 2000 species of animals found in the ocean are either venomous or poisonous to humans, and many can produce severe illness or fatalities. […] Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating.

• #34 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating. […] SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating.

• #35 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Jellyfish stings are sea creatures. They have nearly see-through bodies with long, finger-like structures called tentacles. Stinging cells inside the tentacles can hurt you if you come in contact with them. Some stings can cause serious harm. Almost 2000 species of animals found in the ocean are either venomous or poisonous to humans, and many can produce severe illness or fatalities. […] Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating.

• #36 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating. […] SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating.

• #37 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating. […] For the great majority of bites, stings, or other forms of poisoning, the danger is either drowning after being stung or an allergic reaction to the venom. […] Most jellyfish stings improve within hours, but some stings can lead to skin irritation or rashes that last for weeks. Contact your provider if you continue to have itching at the sting site. Topical anti-inflammatory creams may be helpful.

• #38 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  Symptoms of stings from different types of jellyfish are: […] LION’S MANE: Breathing difficulty, Muscle cramps, Skin burning and blistering (severe). […] PORTUGUESE MAN-OF-WAR: Abdominal pain, Changes in pulse, Chest pain, Chills, Collapse (shock), Headache, Muscle pain and muscle spasms, Numbness and weakness, Pain in the arms or legs, Raised red spot where stung, Runny nose and watery eyes, Swallowing difficulty, Sweating. […] SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating.

• #39 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating. […] For the great majority of bites, stings, or other forms of poisoning, the danger is either drowning after being stung or an allergic reaction to the venom. […] Most jellyfish stings improve within hours, but some stings can lead to skin irritation or rashes that last for weeks. Contact your provider if you continue to have itching at the sting site. Topical anti-inflammatory creams may be helpful.

• #40 Interventions for the symptoms and signs resulting from jellyfish stings

  https://pmc.ncbi.nlm.nih.gov/articles/PMC8966045/

  Cubozoan or box jellyfish, in particular, Carukia barnesi, may cause Irukandji syndrome, which is characterised by pain and redness at the site of the sting, followed by generalised severe abdominal, back or chest pain, as well as autonomic features such as tachycardia, hypertension, sweating, piloerection, agitation and, uncommonly, heart complications. […] Hot water immersion was superior to ice packs in achieving clinically significant (at least 50%) pain relief at 10 minutes and 20 minutes. […] Treatment with vinegar or Adolph’s meat tenderizer compared with hot water made skin appear worse. […] Adverse events due to treatment were not reported in any trial. […] Although heat appears to be an effective treatment for Physalia (Bluebottle) stings, this evidence is based on a single trial of low-quality evidence. It is still unclear what type of application, temperature, duration of treatment and type of water (salt or fresh) constitute the most effective treatment.

• #41 Jellyfish Stings | First Aid

  https://www.australiawidefirstaid.com.au/resources/first-aid-for-jellyfish-stings

  The symptoms of a box jellyfish sting include: Intense pain – so intense that it may cause irrational behaviour, Frosted pattern of sting marks, Welt marks from tentacles, Tentacles left on skin, Cardiac arrest, Collapse leading to unconsciousness and death, Difficulty breathing. […] Jellyfish stings can be a painful experience. In some cases, they can lead to more serious complications. It is important to seek medical attention if you experience any severe symptoms. […] Symptoms of Irukandji syndrome usually appear about 30 minutes after the person has been stung. In saying that, symptoms can appear in as little as 5 minutes or as long as 45 minutes after the sting has occurred. The first symptoms are often a feeling of anxiety or unease, followed by a sense of foreboding or doom. […] Severe symptoms will then follow and usually include: Intense muscle pain, typically in the form of a headache or backache, Shooting chest, abdominal and muscle pain, Anxiety, Restlessness, Breathing difficulties, Nausea and vomiting, Increased heart rate and blood pressure, Sweating, Fever, Dizziness.

• #42 Jellyfish stings – types, symptoms and treatment | healthdirect

  https://www.healthdirect.gov.au/jellyfish-stings

  If you get a bad sting, your heart may stop, causing death. This can happen in 20 to 30 minutes. […] Irukandji syndrome symptoms can happen 20 to 30 minutes after the sting and include: severe pain in your back, abdomen (tummy), chest and muscles, tachycardia (increased heart rate), hypertension (high blood pressure), anxiety and agitation, nausea (feeling sick) and vomiting. […] See a doctor if you have been stung by a jellyfish and have severe pain that’s not improving or other symptoms. […] If you think you have Irukandji syndrome, go to hospital. […] Bad bluebottle jellyfish stings may cause blisters that need dressings. […] Very rarely, after a bluebottle sting some people have: nausea, vomiting, abdominal (tummy) pain, muscle pain, problems breathing. […] To help prevent jellyfish stings, stay out of the sea when there are warnings about jellyfish especially during stinger season.

• #43 Jellyfish Stings: What to do & how to treat stings

  https://patient.info/skin-conditions/insect-bites-and-stings-leaflet/jellyfish-sting

  Chironex fleckeri is a very large box jellyfish, with a venom that can cause heart rhythm disturbance and cardiac arrest. Stinging from contact with four feet of tentacle can kill an adult man, and two feet can kill a child. Smaller stings are not usually fatal. About 40 people a year die in the Philippines from box jellyfish stings. In Australia, where beaches are netted and public awareness is high, fewer than 100 people are thought to have died from box jellyfish stings since 1883, although some unexplained swimming deaths may relate to the creature. […] Irukandji jellyfish are small – measuring only 1-3 cm across (depending on the type), but the barely visible tentacles may be a metre long. They inject venom and cysts into the skin, causing Irukandji syndrome. This involves severe muscle pain including severe low back pain, rapid heart rate, massively raised blood pressure, nausea, headaches, sweating, muscle numbness, chest tightness, restlessness, sickness (vomiting) and a terrible sense of doom. In severe cases they have been known to cause brain haemorrhage. There is a delay of around 30 minutes before symptoms begin.

• #44 Jellyfish Stings | First Aid

  https://www.australiawidefirstaid.com.au/resources/first-aid-for-jellyfish-stings

  The symptoms of a box jellyfish sting include: Intense pain – so intense that it may cause irrational behaviour, Frosted pattern of sting marks, Welt marks from tentacles, Tentacles left on skin, Cardiac arrest, Collapse leading to unconsciousness and death, Difficulty breathing. […] Jellyfish stings can be a painful experience. In some cases, they can lead to more serious complications. It is important to seek medical attention if you experience any severe symptoms. […] Symptoms of Irukandji syndrome usually appear about 30 minutes after the person has been stung. In saying that, symptoms can appear in as little as 5 minutes or as long as 45 minutes after the sting has occurred. The first symptoms are often a feeling of anxiety or unease, followed by a sense of foreboding or doom. […] Severe symptoms will then follow and usually include: Intense muscle pain, typically in the form of a headache or backache, Shooting chest, abdominal and muscle pain, Anxiety, Restlessness, Breathing difficulties, Nausea and vomiting, Increased heart rate and blood pressure, Sweating, Fever, Dizziness.

• #45

  https://stjohnwa.com.au/online-resources/first-aid-information-and-resources/jellyfish-stings?srsltid=AfmBOorb2UraGs31nZvagDeeeSYpXEw68PcW9Jooj-mAGdCnEOCW1fC6

  Many species of jellyfish such as the Bluebottle occur in nontropical Australian coastal waters. Stings from these jellyfish can cause immediate pain and allergic reactions. […] Immediate pain ranging from mild irritation to intense, sharp or burning pain. […] Whip like marks, raised welts and redness on the skin. […] Muscle aches and cramps. […] Nausea. […] Vomiting. […] The Box Jellyfish and Irukandji are found in tropical waters that range from Geraldton and extend north around the coastline of WA. […] The stings from these are painful and can be fatal to humans. […] The sting can be minor but can cause severe generalised pain. […] Pain at the site (sometimes extreme). […] Respiratory and cardiac arrest in minutes. […] Severe pain (back and abdomen). […] Nausea. […] Vomiting. […] Sweating. […] Feeling of impending doom.

• #46 Jellyfish Stings | First Aid

  https://www.australiawidefirstaid.com.au/resources/first-aid-for-jellyfish-stings

  Irukandji syndrome is a rare and potentially fatal condition caused by the sting of an Irukandji jellyfish. As it can cause pulmonary oedema, hypertensive stroke and heart failure, it is possible to have ongoing cardiovascular complications as a result of an Irukandji sting. […] Jellyfish stings can be a painful experience. In some cases, they can also be fatal.

• #47 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Portuguese man-of-war and sea nettle stings are rarely deadly. […] Certain box jellyfish stings can kill a person within minutes. Other box jellyfish stings can lead to death in 4 to 48 hours after a sting due to „Irukandji syndrome,” a delayed reaction to the sting. […] It is important to carefully monitor box jellyfish sting victims for hours after a sting. Seek medical attention right away for any breathing difficulties, chest or abdominal pains, or profuse sweating.

• #48 Jellyfish Sting: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/17821-jellyfish-stings

  Depending on the type of jellyfish and how much of your skin touches the venom, the sting can cause pain or other serious health problems. Some jellyfish stings can be life-threatening. It’s important to get medical help if you have severe symptoms after a jellyfish sting. […] The prognosis for a jellyfish sting depends on the type of jellyfish. Stings from some jellyfish cause only minor itching and pain. But some box jellyfish stings can kill you within a matter of minutes. Other box jellyfish stings can cause a fatal reaction four to 48 hours after a sting due to Irukandji syndrome. Irukandji syndrome is a delayed reaction to a sting.

• #49 Jellyfish Stings Pictures, Pain Symptoms, Types, and Treatment

  https://www.emedicinehealth.com/jellyfish_stings/article_em.htm

  Jellyfish stings are generally accidental – from swimming or wading into a jellyfish or carelessly handling them. […] Symptoms include an intense, stinging pain, itching, rash, and raised welts. […] The progressive effects of a jellyfish sting may include nausea, vomiting, diarrhea, lymph node swelling, abdominal pain, numbness/tingling, and muscle spasms. […] Severe reactions can cause difficulty breathing, coma, and death. […] A sting from a box jellyfish or other venomous types of jellyfish can cause death in minutes.

• #50 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Portuguese man-of-war and sea nettle stings are rarely deadly. […] Certain box jellyfish stings can kill a person within minutes. Other box jellyfish stings can lead to death in 4 to 48 hours after a sting due to „Irukandji syndrome,” a delayed reaction to the sting. […] It is important to carefully monitor box jellyfish sting victims for hours after a sting. Seek medical attention right away for any breathing difficulties, chest or abdominal pains, or profuse sweating.

• #51 Box Jellyfish Sting: Emergency First Aid, Side Effects, and Symptoms

  https://www.healthline.com/health/box-jellyfish-sting

  You should steer clear of a box jellyfish. The marine animals sting can cause serious and sometimes fatal symptoms in a matter of minutes. […] Symptoms from a box jellyfish sting will vary depending on the severity of your interaction with the creature. You may notice these symptoms first: severe stinging or burning pain, red skin wounds that look like caterpillar tracks. […] Symptoms may then escalate to: disoriented behavior from pain, loss of consciousness, back, chest, or abdominal pain, high blood pressure, elevated heart rate. […] In the most severe cases, a person can experience cardiac arrest, which can lead to death. […] According to the Emergency Care Institute of New South Wales, if 10 percent or more of a persons skin is affected by the venom of Chironex fleckeri, the sting becomes deadly, especially in children.

• #52 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Portuguese man-of-war and sea nettle stings are rarely deadly. […] Certain box jellyfish stings can kill a person within minutes. Other box jellyfish stings can lead to death in 4 to 48 hours after a sting due to „Irukandji syndrome,” a delayed reaction to the sting. […] It is important to carefully monitor box jellyfish sting victims for hours after a sting. Seek medical attention right away for any breathing difficulties, chest or abdominal pains, or profuse sweating.

• #53 Jellyfish Stings: What to do & how to treat stings

  https://patient.info/skin-conditions/insect-bites-and-stings-leaflet/jellyfish-sting

  The sting of the man o’ war is very painful, and is often described as feeling like a sudden burn on the skin. Stings are normally multiple, causing skin wheals longer than 20 cm. Some severe skin injuries turn into scabs lasting for about two weeks before resolving and leaving red scars. Stings cause pain lasting 2-3 hours. Wheals are usually extremely sore, and leave red open welts on the skin that last 2-3 days. […] Less commonly the venom can trigger a reaction rather like an allergy, including swelling of the airway, heart rhythm disturbance and breathing difficulty. Other symptoms can include high temperature (fever) and shock. Fatal stings are extremely rare, and usually result from allergic reaction to multiple stings. […] Box jellyfish stings are very painful. The box jellyfish fires its venom and cysts into the skin, greatly increasing their harmful potential. One of the reasons for the particular hazardous nature of box jelly stings is that those stung can go into shock, rendering them unable to swim, so that they drown before reaching shore.

• #54 Box Jellyfish Sting: Emergency First Aid, Side Effects, and Symptoms

  https://www.healthline.com/health/box-jellyfish-sting

  You should steer clear of a box jellyfish. The marine animals sting can cause serious and sometimes fatal symptoms in a matter of minutes. […] Symptoms from a box jellyfish sting will vary depending on the severity of your interaction with the creature. You may notice these symptoms first: severe stinging or burning pain, red skin wounds that look like caterpillar tracks. […] Symptoms may then escalate to: disoriented behavior from pain, loss of consciousness, back, chest, or abdominal pain, high blood pressure, elevated heart rate. […] In the most severe cases, a person can experience cardiac arrest, which can lead to death. […] According to the Emergency Care Institute of New South Wales, if 10 percent or more of a persons skin is affected by the venom of Chironex fleckeri, the sting becomes deadly, especially in children.

• #55 Box Jellyfish Sting: Emergency First Aid, Side Effects, and Symptoms

  https://www.healthline.com/health/box-jellyfish-sting

  A 2016 study examined box jellyfish stings on islands in Thailand and found that of 15 cases, six were fatal. However, all of those stung experienced serious symptoms within a few minutes. […] The sting of Chironex fleckeri and other box jellyfish can lead to heart rhythm problems and ultimately death by causing nonstop contraction of the muscles and overproduction of potassium in the blood. The lethal reaction, when severe, is usually immediate.

• #56 Jellyfish Sting: Treatment and Tips

  https://www.verywellhealth.com/how-to-treat-a-jellyfish-sting-1298222

  The amount of time a jellyfish sting lasts can vary by species. Stings from small bluebottle jellyfish may last for one hour. A sting from the Australian sea wasp (Chironex fleckeri) described by some as the most lethal jellyfish in the world can be deadly, especially in small children. […] A jellyfish sting is commonly described as a sharp, burning, stinging, or tingling sensation on your skin. Often, the sting will be accompanied by a throbbing pain radiating upward and outward on the arm, leg, or torso. […] In most cases, a severe reaction will occur immediately or soon after the sting. However, if anaphylaxis is involved, reactions have been known to be delayed for days and even weeks. […] Symptoms of a severe jellyfish sting that require immediate medical care include: Shortness of breath; Wheezing; Chest tightness; Nausea or vomiting; Hives; Numbness or tingling; Muscle cramps; Blistering skin; Difficulty swallowing; Rapid heartbeat; Pain in various parts of the body; Dizziness or fainting.

• #57 Jellyfish stings

  https://info.health.nz/conditions-treatments/bites-stings/jellyfish-stings

  Most jellyfish stings are not serious. If treated straight away you are not likely to develop major symptoms. […] Jellyfish stings can cause: intense pain, itching, burning, a red, swollen mark. […] Call your healthcare provider if you have been stung and have: increasing numbness, difficulty breathing, signs of poisoning, including stomach pain, muscle cramps, nausea and vomiting, signs of infection later, including increased pain, redness, swelling, red streaks leading away from the sting, heat, discharge of pus, fever, or chills, pain that is not controlled by self care, any new or worsening symptoms, a contaminated wound (a tetanus injection may be needed). […] Some people have a severe allergic reaction. Anaphylaxis from jellyfish stings is rare. […] Symptoms of either of these reactions include: swelling around the lips and eyes, rapid development of a rash, shortness of breath or wheezing, chest tightness, severe dizziness or faints, hoarse voice, difficulty swallowing or throat tightness, signs of shock (pale skin, rapid pulse and fainting).

• #58 Jellyfish Sting: Treatment and Tips

  https://www.verywellhealth.com/how-to-treat-a-jellyfish-sting-1298222

  If left untreated, anaphylaxis can lead to shock, respiratory obstruction due to swelling, cardiac or respiratory arrest, or death. […] Occasionally people have a severe reaction to a jellyfish sting, including hives, nausea or vomiting, difficulty breathing or swallowing, rapid heart rate, or anaphylaxis. These severe symptoms require immediate medical attention.

• #59 Jellyfish Stings: Allergic Reaction | HealthLink BC

  https://www.healthlinkbc.ca/healthwise/jellyfish-stings-allergic-reaction

  Jellyfish found in Canadian coastal waters are capable of stinging, resulting in a mild to moderate amount of pain. […] The pain from jellyfish and Portuguese man-of-war stings may be intense and may last for several hours. The skin at the site of the stings may look dusky or bluish purple. Blisters and deep sores (ulcers) may develop. Healing is generally a slow process that may take many weeks. Permanent scars may occur at the site of a sting. […] Problems from jellyfish or Portuguese man-of-war stings may develop right away or be delayed for several hours or days. A severe allergic reaction (anaphylaxis) may affect any body system and require emergency care. Symptoms can include any of the following: […] Shock […] Severe pain […] Swelling of the lips, tongue, mouth, throat, neck, ears, eyelids, palms, or soles of the feet (angioedema). Swelling is most serious when it involves the airway and interferes with breathing.

• #60 Jellyfish Sting: Treatment and Tips

  https://www.verywellhealth.com/how-to-treat-a-jellyfish-sting-1298222

  If left untreated, anaphylaxis can lead to shock, respiratory obstruction due to swelling, cardiac or respiratory arrest, or death. […] Occasionally people have a severe reaction to a jellyfish sting, including hives, nausea or vomiting, difficulty breathing or swallowing, rapid heart rate, or anaphylaxis. These severe symptoms require immediate medical attention.

• #61

  https://www.meetaugust.ai/library/en/diseases-conditions/view/jellyfish-stings

  Jellyfish stings can have several unpleasant side effects. Sometimes, a reaction to the sting doesn’t show up right away. This delayed reaction might result in painful skin problems like blisters, rashes, or other skin irritations. […] Another potential complication is a condition called Irukandji syndrome. This syndrome is caused by some types of jellyfish and can lead to a range of symptoms. These symptoms often include painful chest and stomach areas, high blood pressure, and even problems with the heart. It’s important to note that these symptoms can be serious, and seeking medical attention promptly is crucial.

• #62 Jellyfish stings – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/jellyfish-stings/

  Jellyfish stings are fairly common problems for people swimming, wading or diving in oceans. Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases theyre life-threatening. Symptoms of jellyfish stings include: Burning, prickling, stinging pain […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting […] The severity of a reaction depends on: The type and size of the jellyfish […] Seek emergency treatment if you have severe symptoms. […] Jellyfish stings are caused by brushing against a jellyfish tentacle. […] Possible complications of a jellyfish sting include: Delayed skin reaction, causing blisters, rash or other irritation

• #63 Gallery of Jellyfish Sting Pictures

  https://www.verywellhealth.com/jellyfish-sting-pictures-4020349

  Seek emergency care if you have signs of anaphylaxis. Signs include shortness of breath, hives, rapid heartbeat, nausea, confusion, and swelling of the face, tongue, or throat. This condition is a medical emergency which can lead to death. […] Two days after a jellyfish sting, the skin will have started to heal. It will still show faint tentacle marks. If you have a hypersensitivity reaction, you may notice a rash or hives. These can usually be treated with over-the-counter (OTC) oral antihistamines or corticosteroids. […] If a jellyfish tentacle touches you, thousands of nematocysts can pierce your skin and inject toxins. Depending on the species and the number of stings, your reaction may range from mild to severe. If there are many stings, venom can build up in your blood vessels. That can cause patchy redness, swelling, and burning.

• #64 What Are Box Jellyfish Stings? Symptoms and Treatments

  https://www.webmd.com/first-aid/what-to-know-about-box-jellyfish-stings

  Complications of a box jellyfish sting may include a delayed sensitivity reaction, which can happen a week or two after a sting and cause blisters, rashes, and skin irritation. […] Jellyfish stings can sometimes cause a severe allergic reaction that includes trouble breathing or swallowing. Call 911 right away if you or someone you know is having these symptoms. […] While a jellyfish sting is likely to get better within a few hours, some can leave a rash that stays with you for weeks. After the rash fades, you could have a permanent scar.

• #65 Jellyfish sting – delayed reaction? | ScubaBoard

  https://scubaboard.com/community/threads/jellyfish-sting-delayed-reaction.95987/

  Two weeks ago in Cozumel, I took a hit from a jellyfish or something across the back of my hand. Immediate reaction, swelling, redness, pain, etc, lasted a couple of hours then faded away. But a week later back home the back of my hand erupted again in the same place with red welts that are taking days to fade away. […] I have read that symptom re-occurrance within the first month is not unheard of. in some species, break outs happen for up to a year after the sting it must be some property in the toxin that makes it „flare up” again. […] From Dangerous Marine Creatures by Carl Edmonds M.D. re jellyfish stings: „The skin reactions may be local, a mild prickly sensation developing immediately on contact, a severe burning or throbbing pain, local sweating, keloids, atrophy of underlying fat tissue, with delayed (5-30 days), recurrent, generalised or satellite (distal) lesions.”

• #66 What Are Box Jellyfish Stings? Symptoms and Treatments

  https://www.webmd.com/first-aid/what-to-know-about-box-jellyfish-stings

  Complications of a box jellyfish sting may include a delayed sensitivity reaction, which can happen a week or two after a sting and cause blisters, rashes, and skin irritation. […] Jellyfish stings can sometimes cause a severe allergic reaction that includes trouble breathing or swallowing. Call 911 right away if you or someone you know is having these symptoms. […] While a jellyfish sting is likely to get better within a few hours, some can leave a rash that stays with you for weeks. After the rash fades, you could have a permanent scar.

• #67 Jellyfish sting – delayed reaction? | ScubaBoard

  https://scubaboard.com/community/threads/jellyfish-sting-delayed-reaction.95987/

  Two weeks ago in Cozumel, I took a hit from a jellyfish or something across the back of my hand. Immediate reaction, swelling, redness, pain, etc, lasted a couple of hours then faded away. But a week later back home the back of my hand erupted again in the same place with red welts that are taking days to fade away. […] I have read that symptom re-occurrance within the first month is not unheard of. in some species, break outs happen for up to a year after the sting it must be some property in the toxin that makes it „flare up” again. […] From Dangerous Marine Creatures by Carl Edmonds M.D. re jellyfish stings: „The skin reactions may be local, a mild prickly sensation developing immediately on contact, a severe burning or throbbing pain, local sweating, keloids, atrophy of underlying fat tissue, with delayed (5-30 days), recurrent, generalised or satellite (distal) lesions.”

• #68 Jellyfish Stings: A Review of Skin Symptoms, Pathophysiology, and Management

  https://pmc.ncbi.nlm.nih.gov/articles/PMC11297359/

  Certain clinical characteristics of the lesion may raise suspicion regarding which Cnidaria class is responsible. For instance, Scyphozoan stings can cause jellyfish-shaped erythematous lesions, Hydrozoa stings can result in a linear rash with a string of beads appearance, and Cubozoan stings can leave whip-like marks that are relatively wide and cross-hatched, accompanied by a frosted appearance caused by superficial skin necrosis. Seabathers eruption (SBE), an acute dermatitis, is noteworthy, especially when caused by the thimble jellyfish Linuche unguiculata, Linuche aquila, and, rarely, the sea anemone Edwardsiella lineata. Recurrent eruptions subsequent to the initial stings have been reported to be caused by Pelagia noctiluca, Rhizostoma pulmo, and Aurelia aurita.

• #69 Jellyfish stings Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/poison/jellyfish-stings

  For the great majority of bites, stings, or other forms of poisoning, the danger is either drowning after being stung or an allergic reaction to the venom. […] Most jellyfish stings improve within hours, but some stings can lead to skin irritation or rashes that last for weeks. Contact your provider if you continue to have itching at the sting site. Topical anti-inflammatory creams may be helpful. […] Portuguese man-of-war and sea nettle stings are rarely deadly. […] Certain box jellyfish stings can kill a person within minutes. Other box jellyfish stings can lead to death in 4 to 48 hours after a sting due to „Irukandji syndrome,” a delayed reaction to the sting. […] It is important to carefully monitor box jellyfish sting victims for hours after a sting. Seek medical attention right away for any breathing difficulties, chest or abdominal pains, or profuse sweating.

• #70 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  SEA NETTLE: Mild skin rash (with mild stings), Muscle cramps and breathing difficulty (from a lot of contact). […] SEA WASP OR BOX JELLYFISH: Abdominal pain, Breathing difficulty, Changes in pulse, Chest pain, Collapse (shock), Headache, Muscle pain and muscle spasms, Nausea and vomiting, Pain in the arms or legs, Raised red spot where stung, Severe burning pain and sting site blistering, Skin tissue death, Sweating. […] For the great majority of bites, stings, or other forms of poisoning, the danger is either drowning after being stung or an allergic reaction to the venom. […] Most jellyfish stings improve within hours, but some stings can lead to skin irritation or rashes that last for weeks. Contact your provider if you continue to have itching at the sting site. Topical anti-inflammatory creams may be helpful.

• #71 Jellyfish Stings: What to do & how to treat stings

  https://patient.info/skin-conditions/insect-bites-and-stings-leaflet/jellyfish-sting

  About 100 people are hospitalised each year in Australia due to Irukandji syndrome. A single sting is not usually fatal, although multiple stings from a group of jellies are extremely dangerous. Fatalities are very rare, but hospitalisation with induced coma can be needed for up to two weeks to manage symptoms. Survivors may experience considerable pain for weeks, and are usually left with permanent scarring where the tentacles made contact.

• #72 What does a jellyfish sting look like? Symptoms and treatment

  https://www.usatoday.com/story/life/health-wellness/2024/07/08/what-does-a-jellyfish-sting-look-like/74165650007/

  The sting of certain types of jellyfish can be fatal, and tragically, may kill a person within a matter of minutes, per Mount Sinai Hospital. […] If you experience any systemic symptoms as a result of a severe sting, such as abdominal pain, breathing difficulties, muscle spasms or heart problems, it is imperative that you seek emergency care, per Mayo Clinic. […] During the acute phase, which lasts a few days, youll find that your jellyfish sting can actually get worse before it gets better, Maxfield says. […] Then, youll be left with delayed hyperpigmentation at the former site of the jellyfish sting. Depending on the person, the time that it takes for hyperpigmentation to fade will vary. It can take anywhere from one to two weeks, to a month, he says.

• #73 Jellyfish Sting: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/17821-jellyfish-stings

  Most jellyfish stings are harmless. But some jellyfish stings can cause serious harm. If you or someone you’re with is stung, get help right away. If you’re experiencing life-threatening symptoms such as difficulty breathing, call 911 or go to your nearest emergency room. […] The symptoms of jellyfish stings depend on the type of jellyfish you made contact with. If you have a minor jellyfish sting, you may feel slight pain, itching, burning or throbbing. A jellyfish sting may look like a rash with red, purple or brown patches. […] More serious jellyfish stings can cause greater harm. You should seek medical help right away if you have more severe symptoms. These symptoms may include: Difficulty breathing, Chest pain, Muscle cramps, Skin blisters, Numbness or tingling, Nausea or vomiting, Difficulty swallowing (dysphagia), Abdominal pain, Excessive sweating (hyperhidrosis).

• #74 Jellyfish Sting: Treatment and Tips

  https://www.verywellhealth.com/how-to-treat-a-jellyfish-sting-1298222

  The amount of time a jellyfish sting lasts can vary by species. Stings from small bluebottle jellyfish may last for one hour. A sting from the Australian sea wasp (Chironex fleckeri) described by some as the most lethal jellyfish in the world can be deadly, especially in small children. […] A jellyfish sting is commonly described as a sharp, burning, stinging, or tingling sensation on your skin. Often, the sting will be accompanied by a throbbing pain radiating upward and outward on the arm, leg, or torso. […] In most cases, a severe reaction will occur immediately or soon after the sting. However, if anaphylaxis is involved, reactions have been known to be delayed for days and even weeks. […] Symptoms of a severe jellyfish sting that require immediate medical care include: Shortness of breath; Wheezing; Chest tightness; Nausea or vomiting; Hives; Numbness or tingling; Muscle cramps; Blistering skin; Difficulty swallowing; Rapid heartbeat; Pain in various parts of the body; Dizziness or fainting.

• #75 Jellyfish Sting: Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/17821-jellyfish-stings

  Most jellyfish stings are harmless. But some jellyfish stings can cause serious harm. If you or someone you’re with is stung, get help right away. If you’re experiencing life-threatening symptoms such as difficulty breathing, call 911 or go to your nearest emergency room. […] The symptoms of jellyfish stings depend on the type of jellyfish you made contact with. If you have a minor jellyfish sting, you may feel slight pain, itching, burning or throbbing. A jellyfish sting may look like a rash with red, purple or brown patches. […] More serious jellyfish stings can cause greater harm. You should seek medical help right away if you have more severe symptoms. These symptoms may include: Difficulty breathing, Chest pain, Muscle cramps, Skin blisters, Numbness or tingling, Nausea or vomiting, Difficulty swallowing (dysphagia), Abdominal pain, Excessive sweating (hyperhidrosis).

• #76 Jellyfish stings: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/002845.htm

  Portuguese man-of-war and sea nettle stings are rarely deadly. […] Certain box jellyfish stings can kill a person within minutes. Other box jellyfish stings can lead to death in 4 to 48 hours after a sting due to „Irukandji syndrome,” a delayed reaction to the sting. […] It is important to carefully monitor box jellyfish sting victims for hours after a sting. Seek medical attention right away for any breathing difficulties, chest or abdominal pains, or profuse sweating.

• #77 Jellyfish stings

  https://info.health.nz/conditions-treatments/bites-stings/jellyfish-stings

  Most jellyfish stings are not serious. If treated straight away you are not likely to develop major symptoms. […] Jellyfish stings can cause: intense pain, itching, burning, a red, swollen mark. […] Call your healthcare provider if you have been stung and have: increasing numbness, difficulty breathing, signs of poisoning, including stomach pain, muscle cramps, nausea and vomiting, signs of infection later, including increased pain, redness, swelling, red streaks leading away from the sting, heat, discharge of pus, fever, or chills, pain that is not controlled by self care, any new or worsening symptoms, a contaminated wound (a tetanus injection may be needed). […] Some people have a severe allergic reaction. Anaphylaxis from jellyfish stings is rare. […] Symptoms of either of these reactions include: swelling around the lips and eyes, rapid development of a rash, shortness of breath or wheezing, chest tightness, severe dizziness or faints, hoarse voice, difficulty swallowing or throat tightness, signs of shock (pale skin, rapid pulse and fainting).

• #78 Jellyfish stings | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/jellyfish-stings

  Most often jellyfish stings cause instant pain and inflamed marks on the skin. Some stings may cause more whole-body (systemic) illness. And in rare cases they’re life-threatening. […] Symptoms of jellyfish stings include: Burning, prickling, stinging pain. Welts or tracks on the skin a „print” of the tentacles’ contact with the skin. Itchiness (pruritus). Swelling. Throbbing pain that radiates up a leg or an arm. […] Severe jellyfish stings can affect multiple body systems. These reactions may appear rapidly or several hours after the stings. Symptoms of severe jellyfish stings include: Stomach pain, nausea and vomiting. Headache. Muscle pain or spasms. Faintness, dizziness or confusion. Difficulty breathing. Heart problems. […] The severity of a reaction depends on: The type and size of the jellyfish. The age, size and health of the person affected, with severe reactions more likely in children. How long the person was exposed to the stingers. How much of the skin is affected.

• #79 Jellyfish stings | Health Library | Memorial Health System

  https://www.mhsystem.org/health-library/con-20311564/

  The severity of a reaction depends on: The type and size of the jellyfish, The age, size and health of the person affected, with severe reactions more likely in children, How long the person was exposed to the stingers, How much of the skin is affected. […] Seek emergency treatment if you have severe symptoms. […] See your health care provider if your symptoms worsen or the wound shows symptoms of infection.

• #80 Jellyfish Stings (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/jellyfish.html

  Jellyfish sting their prey with their tentacles, releasing a venom that paralyzes their targets. […] While jellyfish stings are painful, most are not emergencies. Expect pain, red marks, itching, numbness, or tingling with a typical sting. […] But stings from some types of jellyfish such as the box jellyfish (also called sea wasp) are very dangerous, and can even be deadly. […] Jellyfish stings leave thousands of very tiny stingers called nematocysts in the skin. These stingers can continue to release (or „fire”) jellyfish venom (poison) into the body. […] Call an ambulance right away if someone has been stung and: has trouble breathing or swallowing, has a swollen tongue or lips, or a change in voice, has bad pain or feels generally unwell, is nauseated or vomiting, is dizzy or has a headache, has muscle spasms, has stings over a large part of the body, the sting is in the eye or mouth, might have been stung by a very dangerous jellyfish.

• #81 Jellyfish Stings (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/jellyfish.html

  Jellyfish sting their prey with their tentacles, releasing a venom that paralyzes their targets. […] While jellyfish stings are painful, most are not emergencies. Expect pain, red marks, itching, numbness, or tingling with a typical sting. […] But stings from some types of jellyfish such as the box jellyfish (also called sea wasp) are very dangerous, and can even be deadly. […] Jellyfish stings leave thousands of very tiny stingers called nematocysts in the skin. These stingers can continue to release (or „fire”) jellyfish venom (poison) into the body. […] Call an ambulance right away if someone has been stung and: has trouble breathing or swallowing, has a swollen tongue or lips, or a change in voice, has bad pain or feels generally unwell, is nauseated or vomiting, is dizzy or has a headache, has muscle spasms, has stings over a large part of the body, the sting is in the eye or mouth, might have been stung by a very dangerous jellyfish.

• #82 Jellyfish stings – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/diagnosis-treatment/drc-20353290

  Diagnosing jellyfish stings generally doesn’t require a visit to a health care provider. If you do go, your provider will likely be able to diagnose your injury by looking at it. […] Treatment for jellyfish stings includes first-aid care and medical treatment. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes. Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication. […] A delayed rash or other skin reaction may be treated with oral antihistamines or corticosteroids. You may also be given oral pain medicine. […] A jellyfish sting on or near the eye generally requires immediate medical care to control pain and flush the eye.

• #83 Jellyfish stings – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/diagnosis-treatment/drc-20353290

  Diagnosing jellyfish stings generally doesn’t require a visit to a health care provider. If you do go, your provider will likely be able to diagnose your injury by looking at it. […] Treatment for jellyfish stings includes first-aid care and medical treatment. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes. Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication. […] A delayed rash or other skin reaction may be treated with oral antihistamines or corticosteroids. You may also be given oral pain medicine. […] A jellyfish sting on or near the eye generally requires immediate medical care to control pain and flush the eye.

• #84 Jellyfish stings | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/jellyfish-stings?content_id=CON-20311564

  The severity of a reaction depends on: The type and size of the jellyfish; The age, size and health of the person affected, with severe reactions more likely in children; How long the person was exposed to the stingers; How much of the skin is affected. […] Seek emergency treatment if you have severe symptoms. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers; Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes; Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin.

• #85 Jellyfish stings – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/diagnosis-treatment/drc-20353290

  Diagnosing jellyfish stings generally doesn’t require a visit to a health care provider. If you do go, your provider will likely be able to diagnose your injury by looking at it. […] Treatment for jellyfish stings includes first-aid care and medical treatment. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes. Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication. […] A delayed rash or other skin reaction may be treated with oral antihistamines or corticosteroids. You may also be given oral pain medicine. […] A jellyfish sting on or near the eye generally requires immediate medical care to control pain and flush the eye.

• #86 Jellyfish stings – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/diagnosis-treatment/drc-20353290

  Diagnosing jellyfish stings generally doesn’t require a visit to a health care provider. If you do go, your provider will likely be able to diagnose your injury by looking at it. […] Treatment for jellyfish stings includes first-aid care and medical treatment. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes. Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication. […] A delayed rash or other skin reaction may be treated with oral antihistamines or corticosteroids. You may also be given oral pain medicine. […] A jellyfish sting on or near the eye generally requires immediate medical care to control pain and flush the eye.

• #87 Jellyfish stings – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/jellyfish-stings/

  Treatment for jellyfish stings includes first-aid care and medical treatment. Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication.

• #88 Jellyfish stings – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/jellyfish-stings/diagnosis-treatment/drc-20353290

  Diagnosing jellyfish stings generally doesn’t require a visit to a health care provider. If you do go, your provider will likely be able to diagnose your injury by looking at it. […] Treatment for jellyfish stings includes first-aid care and medical treatment. […] Most jellyfish stings can be treated as follows: Carefully pluck visible tentacles with a fine tweezers. Soak the skin in hot water. Use water that’s 110 to 113 F (43 to 45 C). It should feel hot, not scalding. Keep the affected skin immersed or in a hot shower until the pain eases, which might be 20 to 45 minutes. Apply 0.5% to 1% hydrocortisone cream or ointment twice a day to the affected skin. […] Emergency care. Someone having a severe reaction to a jellyfish sting may need cardiopulmonary resuscitation (CPR), life support or, if the sting is from a box jellyfish, antivenom medication. […] A delayed rash or other skin reaction may be treated with oral antihistamines or corticosteroids. You may also be given oral pain medicine. […] A jellyfish sting on or near the eye generally requires immediate medical care to control pain and flush the eye.

• #89 Jellyfish sting symptoms

  https://petjellyfishus.com/blogs/news/jellyfish-sting-symptoms?srsltid=AfmBOorOEg6lISKDxUZ_F__mppnQKR25TIqLc1qLPBpL63dm_P-x2Uv3

  Jellyfish stings can cause a range of symptoms, depending on the type of jellyfish and the individual’s reaction. Common symptoms include: […] Intense pain at the site of the sting […] Redness and swelling […] Itching and irritation […] Raised, whip-like welts […] Burning or tingling sensation […] Nausea and vomiting […] Muscle cramps […] Headache […] Fever and chills.

• #90 What does a jellyfish sting look like? Symptoms and treatment

  https://www.usatoday.com/story/life/health-wellness/2024/07/08/what-does-a-jellyfish-sting-look-like/74165650007/

  A painful sting may interrupt your beach day plans, but the good news is that most jellyfish stings will only result in mild symptoms that can be healed through first aid. […] If youre stung by an adult jellyfish, the first thing youre going to experience is an immediate, severe pain, says Dr. Jill Grimes, MD, FAAFP, the author of „The ULTIMATE College Student Health Handbook.” […] The mildest reactions can look like little raised red bumps that coalesce into plaques, says Dr. Luke Maxfield, a board certified dermatologist. […] In the case that your body experiences a delayed reaction to a jellyfish sting, you may experience inflammation and persistent hyperpigmentation, Maxfield says. […] During a severe reaction to a jellyfish sting, it is possible to experience painful blistering.

• #91

  https://stjohnwa.com.au/online-resources/first-aid-information-and-resources/jellyfish-stings?srsltid=AfmBOorb2UraGs31nZvagDeeeSYpXEw68PcW9Jooj-mAGdCnEOCW1fC6

  Many species of jellyfish such as the Bluebottle occur in nontropical Australian coastal waters. Stings from these jellyfish can cause immediate pain and allergic reactions. […] Immediate pain ranging from mild irritation to intense, sharp or burning pain. […] Whip like marks, raised welts and redness on the skin. […] Muscle aches and cramps. […] Nausea. […] Vomiting. […] The Box Jellyfish and Irukandji are found in tropical waters that range from Geraldton and extend north around the coastline of WA. […] The stings from these are painful and can be fatal to humans. […] The sting can be minor but can cause severe generalised pain. […] Pain at the site (sometimes extreme). […] Respiratory and cardiac arrest in minutes. […] Severe pain (back and abdomen). […] Nausea. […] Vomiting. […] Sweating. […] Feeling of impending doom.

• #92 JELLYFISH STINGS – MOST Skincare

  https://www.mostskincare.com/en/general-skin-conditions/jellyfish-stings/?srsltid=AfmBOorhfNAMN1rtHhqq6vC8oYr7y-uBD_rZCz5LkzjQ1dBpaWnGPQUs

  As soon as the contact between our skin and the jellyfish occurs, we feel an intense burning and pain. Immediately afterwards the skin becomes red and small skin bumps called wheals appear. The burning sensation ends in 10-20 minutes and turns into a sensation of intense itching. […] In the days following a sting, skin may remain inflamed and could blister and/or scab. The redness turns into persistent pigmentation.

• #93 Jellyfish Sting in Children | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/symptoms/jellyfish-sting/

  The creature’s stingers inject venom into the human skin. This is what causes the symptoms. The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] Local Reactions are most common. Symptoms are raised, red lines that cross each other. The sting causes pain or burning at the site. Sometimes hives in the sting area occur. Blisters can occur in severe cases. Severe pain lasts 1-2 hours. Itching may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] General Reactions can occur if there are many stings. More stings give a higher dose of venom. Large venom symptoms are vomiting, dizziness, weakness and headache. […] Anaphylaxis (A severe allergic reaction). Life-threatening reactions are very rare with the stings. Most are caused by box jellyfish found in the South Pacific and Australia. The main symptoms are trouble breathing and swallowing, along with hives. It starts rapidly, most often within 20 minutes of the sting. […] Severe burning pain will lessen within a few hours. Itching may last for a week. Red lines from the tentacles may last 1-2 weeks.

• #94 Jellyfish Stings | Children’s Hospital of Philadelphia

  https://www.chop.edu/centers-programs/poison-control-center/jellyfish-stings

  A jellyfish’s tentacles are loaded with small bee-like stingers that contain a toxin used to stun small water prey. This is why within 4-24 hours after a human is exposed to the stinger of a jellyfish, the affected skin can become painful, red and swollen, and an itchy rash can appear. […] With severe stings when a lot of venom is injected into the skin or when a person is extremely allergic to the venom weakness, dizziness, nausea, headache, muscle aches, spasms and difficulty breathing can result. […] If severe symptoms occur, call your doctor or go directly to the emergency room.

• #95 Interventions for the symptoms and signs resulting from jellyfish stings

  https://pmc.ncbi.nlm.nih.gov/articles/PMC8966045/

  Cubozoan or box jellyfish, in particular, Carukia barnesi, may cause Irukandji syndrome, which is characterised by pain and redness at the site of the sting, followed by generalised severe abdominal, back or chest pain, as well as autonomic features such as tachycardia, hypertension, sweating, piloerection, agitation and, uncommonly, heart complications. […] Hot water immersion was superior to ice packs in achieving clinically significant (at least 50%) pain relief at 10 minutes and 20 minutes. […] Treatment with vinegar or Adolph’s meat tenderizer compared with hot water made skin appear worse. […] Adverse events due to treatment were not reported in any trial. […] Although heat appears to be an effective treatment for Physalia (Bluebottle) stings, this evidence is based on a single trial of low-quality evidence. It is still unclear what type of application, temperature, duration of treatment and type of water (salt or fresh) constitute the most effective treatment.

• #96 Jellyfish Sting in Children | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/symptoms/jellyfish-sting/

  The creature’s stingers inject venom into the human skin. This is what causes the symptoms. The main symptoms are pain, burning and redness at the sting site. Red lines are common. […] Local Reactions are most common. Symptoms are raised, red lines that cross each other. The sting causes pain or burning at the site. Sometimes hives in the sting area occur. Blisters can occur in severe cases. Severe pain lasts 1-2 hours. Itching may last for a week. If the skin damage is severe, red or purple lines can last for weeks. […] General Reactions can occur if there are many stings. More stings give a higher dose of venom. Large venom symptoms are vomiting, dizziness, weakness and headache. […] Anaphylaxis (A severe allergic reaction). Life-threatening reactions are very rare with the stings. Most are caused by box jellyfish found in the South Pacific and Australia. The main symptoms are trouble breathing and swallowing, along with hives. It starts rapidly, most often within 20 minutes of the sting. […] Severe burning pain will lessen within a few hours. Itching may last for a week. Red lines from the tentacles may last 1-2 weeks.

• #97 Gallery of Jellyfish Sting Pictures

  https://www.verywellhealth.com/jellyfish-sting-pictures-4020349

  Seek emergency care if you have signs of anaphylaxis. Signs include shortness of breath, hives, rapid heartbeat, nausea, confusion, and swelling of the face, tongue, or throat. This condition is a medical emergency which can lead to death. […] Two days after a jellyfish sting, the skin will have started to heal. It will still show faint tentacle marks. If you have a hypersensitivity reaction, you may notice a rash or hives. These can usually be treated with over-the-counter (OTC) oral antihistamines or corticosteroids. […] If a jellyfish tentacle touches you, thousands of nematocysts can pierce your skin and inject toxins. Depending on the species and the number of stings, your reaction may range from mild to severe. If there are many stings, venom can build up in your blood vessels. That can cause patchy redness, swelling, and burning.

• #98 Jellyfish sting – delayed reaction? | ScubaBoard

  https://scubaboard.com/community/threads/jellyfish-sting-delayed-reaction.95987/

  Two weeks ago in Cozumel, I took a hit from a jellyfish or something across the back of my hand. Immediate reaction, swelling, redness, pain, etc, lasted a couple of hours then faded away. But a week later back home the back of my hand erupted again in the same place with red welts that are taking days to fade away. […] I have read that symptom re-occurrance within the first month is not unheard of. in some species, break outs happen for up to a year after the sting it must be some property in the toxin that makes it „flare up” again. […] From Dangerous Marine Creatures by Carl Edmonds M.D. re jellyfish stings: „The skin reactions may be local, a mild prickly sensation developing immediately on contact, a severe burning or throbbing pain, local sweating, keloids, atrophy of underlying fat tissue, with delayed (5-30 days), recurrent, generalised or satellite (distal) lesions.”

• #99 Jellyfish Stings: Allergic Reaction | HealthLink BC

  https://www.healthlinkbc.ca/healthwise/jellyfish-stings-allergic-reaction

  Jellyfish found in Canadian coastal waters are capable of stinging, resulting in a mild to moderate amount of pain. […] The pain from jellyfish and Portuguese man-of-war stings may be intense and may last for several hours. The skin at the site of the stings may look dusky or bluish purple. Blisters and deep sores (ulcers) may develop. Healing is generally a slow process that may take many weeks. Permanent scars may occur at the site of a sting. […] Problems from jellyfish or Portuguese man-of-war stings may develop right away or be delayed for several hours or days. A severe allergic reaction (anaphylaxis) may affect any body system and require emergency care. Symptoms can include any of the following: […] Shock […] Severe pain […] Swelling of the lips, tongue, mouth, throat, neck, ears, eyelids, palms, or soles of the feet (angioedema). Swelling is most serious when it involves the airway and interferes with breathing.

• #100 Jellyfish Stings: What to do & how to treat stings

  https://patient.info/skin-conditions/insect-bites-and-stings-leaflet/jellyfish-sting

  About 100 people are hospitalised each year in Australia due to Irukandji syndrome. A single sting is not usually fatal, although multiple stings from a group of jellies are extremely dangerous. Fatalities are very rare, but hospitalisation with induced coma can be needed for up to two weeks to manage symptoms. Survivors may experience considerable pain for weeks, and are usually left with permanent scarring where the tentacles made contact.

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