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• #1 Food allergy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/food-allergy/symptoms-causes/syc-20355095

  Food allergy is an immune system reaction that happens soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger symptoms such as hives, swollen airways and digestive problems. In some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis. […] Food allergy symptoms usually develop within a few minutes to two hours after eating the offending food. Rarely, symptoms may be delayed for several hours. […] The most common food allergy symptoms include: Tingling or itching in the mouth. Hives, itching or eczema. Swelling of the lips, face, tongue, and throat or other parts of the body. Belly pain, diarrhea, nausea or vomiting. Wheezing, nasal congestion or trouble breathing. Dizziness, lightheadedness or fainting.

• #2 Food Allergies: Causes, Common Examples & Cures

  https://my.clevelandclinic.org/health/diseases/9196-food-allergies

  Food allergies are caused by your immune system trying to protect you from something it mistakenly thinks is harmful. Eating foods you’re allergic to can cause hives, airway swelling, difficulty breathing, vomiting and dangerously low blood pressure. Go to the ER or call 911 if you have severe symptoms from a food allergy. […] Symptoms of food allergies include: Hives or skin rash, Itchy skin, Swelling of your face, lips, mouth or tongue, Itchy mouth and throat, Hoarse voice, Difficulty swallowing, Wheezing, Shortness of breath or difficulty breathing, Coughing, Abdominal pain, Vomiting, Diarrhea, Lightheadedness or loss of consciousness (fainting), Runny nose, Sneezing. […] Symptoms of food allergies can be severe, even if you’ve only had a mild reaction in the past. Call 911 or go to the ER at the first sign of severe symptoms.

• #2 Food Allergy | Anaphylaxis | Food Allergies | MedlinePlus

  https://medlineplus.gov/foodallergy.html

  A food allergy is an abnormal immune system reaction to certain foods. Your immune system normally protects you from germs. But if you have a food allergy, your immune system mistakenly reacts to certain foods as if they were harmful. This reaction is usually mild. But in some cases, it can be serious or even life-threatening. […] Food allergy symptoms usually start within a few minutes to two hours after you eat that food. They may include: Hives, Flushed skin or rash, Tingling or itchy sensation in the mouth, Face, tongue, or lip swelling, Vomiting and/or diarrhea, Abdominal (belly) cramps, Coughing or wheezing, Dizziness and/or lightheadedness, Swelling of the throat and vocal cords, Trouble breathing. […] In rare cases, a food allergy can cause a life-threatening reaction called anaphylaxis. It may start out with some milder symptoms, but then it becomes more serious. It can lead to: Narrowed airways in the lungs, Severe trouble breathing because of swelling in the throat, Severe lowering of blood pressure and shock („anaphylactic shock”), Loss of consciousness.

• #3 Common Questions – FoodAllergy.org

  https://www.foodallergy.org/resources/common-questions

  Anyone who has a food allergy can have a severe allergic reaction to food. However, having asthma puts you at higher risk. Fatal outcomes of anaphylaxis include a disproportionate number of teens and young adults, possibly because they take more risks with their food allergies (eating dangerously and delaying treatment). […] No. Someone whose reactions have been mild in the past may suddenly experience severe reactions that could be deadly.

• #4 Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/

  Millions of Americans have an allergy of some kind. Almost 6% of U.S. adults and children have a food allergy. Food allergy symptoms are most common in babies and children, but they can appear at any age. You can even develop an allergy to foods you have eaten for years with no problems. […] Symptoms of a food allergy can range from mild to severe. Just because an initial reaction causes few problems doesn’t mean that all reactions will be similar; a food that triggered only mild symptoms on one occasion may cause more severe symptoms at another time. […] The most severe allergic reaction is anaphylaxis — a life-threatening whole-body allergic reaction that can impair your breathing, cause a dramatic drop in your blood pressure and affect your heart rate. Anaphylaxis can come on within minutes of exposure to the trigger food. It can be fatal and must be treated promptly with an injection of epinephrine (adrenaline).

• #5 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Nose and mouth – Sneezing, runny nose, nasal congestion, swelling of the lips or tongue, or increased mucus production […] Lungs and throat – Difficulty getting air in or out, chest tightness, repeated coughing, wheezing or other sounds of labored breathing, throat swelling or itching, hoarseness or change in voice, or a sensation of choking […] Heart and circulation – Dizziness, weakness, fainting, changes in heart rate (fast, slow, or irregular), or low blood pressure […] Digestive system – Nausea, vomiting, abdominal cramps, or diarrhea […] Nervous system – Anxiety, confusion, or a sense of impending doom […] Anaphylaxis — Anaphylaxis is the most serious type of allergic reaction and can cause life-threatening signs and symptoms, including difficulty breathing, swelling of the upper throat and/or tongue, low blood pressure, or cardiac arrest (the heart stops beating).

• #6 Symptoms and Severity | Food Allergy Research & Resource Program | Nebraska

  https://farrp.unl.edu/farrp-resources/general-information-food-allergies-sensitivities/symptoms-and-severity/

  A myriad of different symptoms can be associated with IgE-mediated food allergies; these symptoms develop within minutes to a few hours. The symptoms that occur during a food-allergic reaction will not always be the same. The nature of the symptoms and their severity depend upon several factors including the individual, the amount of the offending food ingested, the tissue receptors that are affected, and the length of time since the previous exposure. Some individuals tend to develop only mild symptoms while others may experience much more severe manifestations. […] The symptoms of IgE-mediated reactions can involve the gastrointestinal tract, skin, or respiratory tract. Gastrointestinal and cutaneous symptoms are among the more common manifestations of IgE-mediated food allergies. Common gastrointestinal symptoms include abdominal cramps, nausea, vomiting, and diarrhea.

• #7 Food allergy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/food-allergy/symptoms-causes/syc-20355095

  In some people, a food allergy can trigger a severe allergic reaction called anaphylaxis. This can cause life-threatening symptoms, including: Constriction and tightening of the airways. A swollen throat or the sensation of a lump in your throat that makes it hard to breathe. Shock with a severe drop in blood pressure. Rapid pulse. Dizziness, lightheadedness or loss of consciousness. […] Emergency treatment is critical for anaphylaxis. Untreated, anaphylaxis can be fatal. […] Seek emergency treatment if you develop any symptoms of anaphylaxis, such as: Constriction of airways that makes it difficult to breathe. Shock with a severe drop in blood pressure. Rapid pulse. Dizziness or lightheadedness.

• #8 Food Allergies: Causes, Common Examples & Cures

  https://my.clevelandclinic.org/health/diseases/9196-food-allergies

  Usually, you experience food allergy symptoms within two hours of eating. […] The most serious complication of food allergies is anaphylaxis, or swelling in multiple body systems that can cause uncontrolled vomiting, difficulty breathing and a severe drop in blood pressure (anaphylactic shock). Severe anaphylaxis can be fatal. […] Allergic reactions are unpredictable, so they can become more severe with each additional exposure. And there’s no way to test for how severe your reaction to a food might be without eating it. So, even if you’ve only had a minor reaction to a food in the past, you still need to be cautious in the future. […] Sometimes. Many kids outgrow milk and egg allergies by age 6. But they rarely (less than 20% of the time) outgrow peanut, tree nut, shellfish or fish allergies.

• #9 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Nose and mouth – Sneezing, runny nose, nasal congestion, swelling of the lips or tongue, or increased mucus production […] Lungs and throat – Difficulty getting air in or out, chest tightness, repeated coughing, wheezing or other sounds of labored breathing, throat swelling or itching, hoarseness or change in voice, or a sensation of choking […] Heart and circulation – Dizziness, weakness, fainting, changes in heart rate (fast, slow, or irregular), or low blood pressure […] Digestive system – Nausea, vomiting, abdominal cramps, or diarrhea […] Nervous system – Anxiety, confusion, or a sense of impending doom […] Anaphylaxis — Anaphylaxis is the most serious type of allergic reaction and can cause life-threatening signs and symptoms, including difficulty breathing, swelling of the upper throat and/or tongue, low blood pressure, or cardiac arrest (the heart stops beating).

• #10 Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/

  Symptoms of an allergic reaction may involve the skin, the gastrointestinal tract, the cardiovascular system and the respiratory tract. They can surface in one or more of the following ways: Vomiting and/or stomach cramps, Hives, Shortness of breath, Wheezing, Repetitive cough, Shock or circulatory collapse, Tight, hoarse throat; trouble swallowing, Swelling of the tongue, affecting the ability to talk or breathe, Weak pulse, Pale or blue coloring of skin, Dizziness or feeling faint, Anaphylaxis, a potentially life-threatening reaction that can impair breathing and send the body into shock; reactions may simultaneously affect different parts of the body (for example, a stomachache accompanied by a rash). […] Most food-related symptoms occur within two hours of ingestion; often they start within minutes. In some very rare cases, the reaction may be delayed by four to six hours or even longer. Delayed reactions are most typically seen in children who develop eczema as a symptom of food allergy and in people with a rare allergy to red meat caused by the bite of a lone star tick.

• #11 Reaction signs and symptoms – Food Allergy Canada

  https://foodallergycanada.ca/food-allergy-basics/preventing-and-treating-allergic-reactions/reaction-signs-and-symptoms/

  Do not ignore early symptoms. […] Symptoms and severity of a reaction can differ each time. Keep in mind that an allergic reaction can start with mild symptoms that can get worse quickly. […] Symptoms of anaphylaxis generally include two or more of the following body systems: skin, respiratory, gastrointestinal, cardiovascular. […] Breathing or heart symptoms alone can be anaphylaxis. Keep in mind that hives dont always appear during anaphylactic reactions. […] Symptoms in babies up to 2 years of age may be indicated by a noticeable change in the sound of their cry, drooling, spitting up of food or drink after feeding, and the uncontrolled passing of stool or urine. […] Small children can have a hard time describing their symptoms. They may complain of a funny feeling in their mouth or throat. Or, they may say things like my mouth feels funny or my tongue is itchy.

• #12 Recognizing and Treating Reaction Symptoms – FoodAllergy.org

  https://www.foodallergy.org/resources/recognizing-and-treating-reaction-symptoms

  The first symptoms of an allergic reaction usually appear between a few minutes and two hours after exposure to a food. Symptoms can affect different parts of the body, can occur alone or in combination, and can range from mild to severe or even life-threatening. […] Severe reactions can quickly progress to anaphylaxis, a condition that can be life-threatening. For this reason, severe reactions must be treated with epinephrine. […] An antihistamine cannot control a severe reaction or anaphylaxis and is no substitute for the early administration of epinephrine.

• #13 Common Questions – FoodAllergy.org

  https://www.foodallergy.org/resources/common-questions

  A food allergy is when your body’s immune system reacts to a food protein because it has mistaken that food protein as a threat. Symptoms can range from mild to life-threatening. […] An allergic reaction to food can have many different symptoms, and a single person can experience different symptoms from one reaction to the next. Many reactions start with skin symptoms, like hives or a rash, but some do not. More serious symptoms like a drop in blood pressure and trouble breathing can be life-threatening. […] Symptoms usually start as soon as a few minutes after eating a food and as long as two hours after. In some cases, after the first symptoms go away, a second wave of symptoms comes back one to four hours later (or sometimes even longer). This second wave is called a biphasic reaction. The risk of a biphasic reaction is why patients who have a severe reaction should stay at a hospital for four to six hours for observation.

• #14 Food Allergy & Anaphylaxis – Food Allergy Basics – Food Allergy Basics | FAACT

  https://www.foodallergyawareness.org/food-allergy-and-anaphylaxis/food-allergy-basics/food-allergy-basics/

  Food allergies are more prevalent in children than in adults, but many affected children can „outgrow” food allergies with age (CDC). […] When a person with a food allergy eats the food, the immune system releases massive amounts of chemicals, including histamine, triggering symptoms affecting the respiratory system, gastrointestinal tract, skin, and/or cardiovascular system. […] Symptoms can develop rapidly, often within minutes, and usually within 30 minutes after exposure to an allergen. […] For food allergens, symptoms can take up to 2 hours to appear. […] Anaphylaxis requires immediate medical treatment, including the administration of epinephrine and a visit to the emergency room. […] Anaphylaxis can be fatal if not treated promptly. […] Biphasic anaphylaxis is a second round of allergic reactions that can occur after the initial reaction. It may happen as early as an hour or 72 hours later, with an average of 10 hours. This second reaction can be less severe, as severe, or even more severe than the initial reaction. […] Each year, severe reactions to food cause: 30,000 emergency room visits, 2,000 hospitalizations, 150 deaths.

• #15 Common Questions – FoodAllergy.org

  https://www.foodallergy.org/resources/common-questions

  A food allergy is when your body’s immune system reacts to a food protein because it has mistaken that food protein as a threat. Symptoms can range from mild to life-threatening. […] An allergic reaction to food can have many different symptoms, and a single person can experience different symptoms from one reaction to the next. Many reactions start with skin symptoms, like hives or a rash, but some do not. More serious symptoms like a drop in blood pressure and trouble breathing can be life-threatening. […] Symptoms usually start as soon as a few minutes after eating a food and as long as two hours after. In some cases, after the first symptoms go away, a second wave of symptoms comes back one to four hours later (or sometimes even longer). This second wave is called a biphasic reaction. The risk of a biphasic reaction is why patients who have a severe reaction should stay at a hospital for four to six hours for observation.

• #16 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Nose and mouth – Sneezing, runny nose, nasal congestion, swelling of the lips or tongue, or increased mucus production […] Lungs and throat – Difficulty getting air in or out, chest tightness, repeated coughing, wheezing or other sounds of labored breathing, throat swelling or itching, hoarseness or change in voice, or a sensation of choking […] Heart and circulation – Dizziness, weakness, fainting, changes in heart rate (fast, slow, or irregular), or low blood pressure […] Digestive system – Nausea, vomiting, abdominal cramps, or diarrhea […] Nervous system – Anxiety, confusion, or a sense of impending doom […] Anaphylaxis — Anaphylaxis is the most serious type of allergic reaction and can cause life-threatening signs and symptoms, including difficulty breathing, swelling of the upper throat and/or tongue, low blood pressure, or cardiac arrest (the heart stops beating).

• #17 Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/

  Symptoms of an allergic reaction may involve the skin, the gastrointestinal tract, the cardiovascular system and the respiratory tract. They can surface in one or more of the following ways: Vomiting and/or stomach cramps, Hives, Shortness of breath, Wheezing, Repetitive cough, Shock or circulatory collapse, Tight, hoarse throat; trouble swallowing, Swelling of the tongue, affecting the ability to talk or breathe, Weak pulse, Pale or blue coloring of skin, Dizziness or feeling faint, Anaphylaxis, a potentially life-threatening reaction that can impair breathing and send the body into shock; reactions may simultaneously affect different parts of the body (for example, a stomachache accompanied by a rash). […] Most food-related symptoms occur within two hours of ingestion; often they start within minutes. In some very rare cases, the reaction may be delayed by four to six hours or even longer. Delayed reactions are most typically seen in children who develop eczema as a symptom of food allergy and in people with a rare allergy to red meat caused by the bite of a lone star tick.

• #18 Food Allergens | Food allergy symptoms

  https://sites.manchester.ac.uk/foodallergens/allergy-facts/food-allergy-symptoms/

  The symptoms of food allergy range from mild discomfort to a severe, life-threatening reaction called anaphylaxis, which requires immediate medical treatment. […] The most frequent symptoms of food allergies are itching or swelling of the mouth. Other symptoms include sneezing, blocked nose, a rash or hives, and stomach upset. […] Symptoms usually begin within the first 5-30 minutes of exposure, but may occur up to several hours later. […] Allergic reactions to foods may occur within a few minutes after eating the food, but rarely symptoms may also develop after hours, making the relationship with ingestion of food less clear. […] Symptoms generally disappear within hours but can last for days. […] Anaphylaxis is an uncommon, acute, potentially life-threatening and sometimes fatal allergic reaction involving the whole body. […] The skin itches, the affected person becomes unwell and dizzy, they feel their heart beating, they feel nauseous, and everything may go black. […] Anaphylaxis can be persistent and reoccurring up to 8-12 hours after an initial attack (reoccurrence occurs in approximately 20% of cases).

• #19

  https://www.wyndly.com/blogs/learn/how-long-do-food-allergy-symptoms-last?srsltid=AfmBOopmhC-ZpJIX5fAbmaxRkm5_Trt_UDB2RVGVWS2RqmsD8ozUVmzl

  In some cases, symptoms manifest almost immediately after eating. This is particularly common with severe allergies, where symptoms like swelling, hives, and difficulty breathing can occur within minutes. This rapid onset of symptoms is a characteristic feature of dangerous anaphylactic reactions. […] On the other hand, some allergic reactions may be delayed, with symptoms appearing several hours after food consumption. These delayed responses are often seen with digestive symptoms like vomiting, diarrhea, or stomach cramps. […] The duration of food allergy symptoms can range from a few hours to several days, depending on the severity of the reaction and the individual’s immune response. While some people may experience immediate relief after the allergen has been eliminated from their system, others may have symptoms linger for a longer period.

• #20

  https://www.everlywell.com/blog/food-allergy/how-long-does-a-food-allergy-reaction-last/?srsltid=AfmBOooAFWJoiCLSC8OOWbm11QVrbrZfeBso4NdNQM-YSJWU7R112iBI

  Certain foods can trigger a unique response from your immune system, depending on your body composition. […] These can include, but are not limited to, abdominal pain, hives, rashes, or blocked airways. […] Once these allergy symptoms are triggered, theres no definitive answer about how long the reaction may last. However, a more severe reactionsuch as anaphylaxiscan take hours or days to resolve and may become life-threatening if untreated. […] How long does a food allergy reaction last? In mild cases, a food allergy will last only a few hours. In more severe cases, such as anaphylaxis, symptoms may persist for several days. […] Depending on the severity of your food allergy, reactions can last from a couple of hours to a few days.

• #21

  https://www.wyndly.com/blogs/learn/how-long-do-food-allergy-symptoms-last?srsltid=AfmBOopmhC-ZpJIX5fAbmaxRkm5_Trt_UDB2RVGVWS2RqmsD8ozUVmzl

  In babies, food allergy symptoms can persist for a few hours to as much as a day or two. Symptoms such as skin rashes and digestive issues may take longer to resolve, especially if the allergenic food continues to be part of the baby’s diet. […] In adults, the duration of food allergy symptoms can also vary. Mild reactions, such as oral allergy syndrome, usually resolve within a few hours without treatment. More severe reactions, like anaphylaxis, require immediate medical attention and symptoms may take longer to subside. […] If symptoms persist for more than a day or two, or if they are severe, it’s important to seek medical attention. Chronic symptoms might indicate a more serious condition, such as a food intolerance or an underlying gastrointestinal disorder. […] A food allergy flare-up, or reaction, typically subsides within 24 hours if treated appropriately. However, reactions can vary greatly in severity and duration, with some lasting a few hours and others persisting for several days. Always seek medical attention for severe or prolonged symptoms. […] Side effects of food allergies, such as hives, stomach cramps, or nausea, typically last a few hours after exposure. However, severe reactions like anaphylaxis require immediate medical attention. The duration can vary based on the severity and individual’s response to treatment.

• #22 How Long Does an Allergic Reaction Last? Symptoms, 3 Stages, 4 Types & Treatment

  https://www.medicinenet.com/how_long_does_an_allergic_reaction_last/article.htm

  Allergic Reaction Severe allergic reactions (anaphylaxis) can be life-threatening and last for several days. An allergic reaction can last anywhere from a few minutes to several days, depending on the severity and type of reaction. It may take anywhere from a few hours to a few days to naturally disappear. Some allergic reactions may take two to four weeks to resolve, even with appropriate treatment. […] Symptoms of severe allergic reactions may take several days or longer to resolve, even with prompt medical treatment. […] Allergic reactions may last for varying lengths of time. They may take a few hours to a few days to disappear. If the exposure to the allergen continues, such as during a spring pollen season, allergic reactions may last for longer periods such as a few weeks to months.

• #23 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Anaphylaxis related to food allergy generally begins within 5 to 60 minutes of exposure to the food, although, in rare cases, symptoms don’t start until several hours after eating. A person who develops symptoms of anaphylaxis must be treated immediately with epinephrine. […] Food allergies can trigger allergic symptoms in the nose, eyes, or throat. The most common nose, eye, and throat symptoms include a runny nose; congestion; sneezing; nasal itching; itchy or watery red eyes; and an itchy mouth, tongue, or throat. These can happen along with or before other whole-body symptoms such as hives, difficulty breathing, vomiting, etc but rarely occur as the only sign of a classic food allergy. […] Oral allergy syndrome — Oral allergy syndrome, or pollen-food allergy syndrome, is seen in up to 50 percent of people with allergic rhinitis caused by pollen (also known as seasonal allergies). In this condition, people who are allergic to pollen can have an allergic reaction after eating certain raw (uncooked) fruits or vegetables. The reaction is immediate and can cause itching, irritation, and mild swelling of the lips, tongue, roof of the mouth, and throat.

• #24 Pollen-Food Allergy Syndrome (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/oas-sydrome.html

  Pollen-food allergy syndrome (also called oral allergy syndrome) causes a type of allergic reaction. It usually only affects the lips, mouth, and throat, and happens when someone with a pollen allergy eats certain foods most commonly raw fruits, vegetables, and nuts. […] In pollen-food allergy syndrome (PFAS), a persons immune system thinks proteins in some foods are like pollen proteins. This is called a cross-reaction. When these foods touch the persons mouth and throat, they will start to feel symptoms within minutes. […] After they eat foods like raw fruits and vegetables, people with PFAS can get symptoms such as: itching or tingling of the mouth and throat (the most common symptom), feeling of throat discomfort, hoarseness, lip/face swelling or redness, itching of the ears and nose. Symptoms usually happen right away and last for a few minutes to half an hour. Rarely, symptoms of a severe allergic reaction can happen.

• #25 Pollen-Food Allergy Syndrome (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/oas-sydrome.html

  Pollen-food allergy syndrome (also called oral allergy syndrome) causes a type of allergic reaction. It usually only affects the lips, mouth, and throat, and happens when someone with a pollen allergy eats certain foods most commonly raw fruits, vegetables, and nuts. […] In pollen-food allergy syndrome (PFAS), a persons immune system thinks proteins in some foods are like pollen proteins. This is called a cross-reaction. When these foods touch the persons mouth and throat, they will start to feel symptoms within minutes. […] After they eat foods like raw fruits and vegetables, people with PFAS can get symptoms such as: itching or tingling of the mouth and throat (the most common symptom), feeling of throat discomfort, hoarseness, lip/face swelling or redness, itching of the ears and nose. Symptoms usually happen right away and last for a few minutes to half an hour. Rarely, symptoms of a severe allergic reaction can happen.

• #26 Oral Allergy Syndrome | Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/pollen-food-allergy-syndrome/

  If you suffer from hay fever and you’ve experienced an itchy mouth or scratchy throat after eating certain raw fruits or vegetables, and some tree nuts, you may have symptoms of Pollen Food Allergy Syndrome, also called Oral Allergy Syndrome. […] Symptoms of PFAS include itchy mouth, scratchy throat, or swelling of the lips, mouth, tongue, and throat. Itchy ears and hives on the mouth are sometimes reported. The symptoms are usually confined to one area and do not normally progress beyond the mouth, It is rare that a patient would develop symptoms away from the mouth, or anaphylaxis from this, although it has been reported in a very small percentage of patients. […] If you or your child experience a reaction beyond the mouth area after eating a fresh fruit or raw vegetable, that food could be considered a risk for anaphylaxis, a serious reaction that comes on quickly and may cause death. In one study, researchers found that PFAS progressed to systemic symptoms in nearly 9 percent of patients and to anaphylactic shock in 1.7 percent of patients.

• #27 Pollen-Food Allergy Syndrome (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/oas-sydrome.html

  Pollen-food allergy syndrome (also called oral allergy syndrome) causes a type of allergic reaction. It usually only affects the lips, mouth, and throat, and happens when someone with a pollen allergy eats certain foods most commonly raw fruits, vegetables, and nuts. […] In pollen-food allergy syndrome (PFAS), a persons immune system thinks proteins in some foods are like pollen proteins. This is called a cross-reaction. When these foods touch the persons mouth and throat, they will start to feel symptoms within minutes. […] After they eat foods like raw fruits and vegetables, people with PFAS can get symptoms such as: itching or tingling of the mouth and throat (the most common symptom), feeling of throat discomfort, hoarseness, lip/face swelling or redness, itching of the ears and nose. Symptoms usually happen right away and last for a few minutes to half an hour. Rarely, symptoms of a severe allergic reaction can happen.

• #28 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Symptoms of oral allergy syndrome may be more noticeable during pollen season. Symptoms usually resolve within minutes after the person stops eating the food. Most people have only localized symptoms (that is, affecting only the mouth). […] Less than 10 percent of people develop body-wide symptoms from fruits and vegetables (eg, vomiting, coughing), and 1 to 2 percent of people develop anaphylaxis. […] Food-dependent exercise-induced anaphylaxis — Some people develop anaphylaxis after eating a certain food and then exercising afterwards (within about four hours of eating the food). This is called „food-dependent exercise-induced anaphylaxis.” The reaction can occasionally occur after exercising first and then eating the food. Importantly, with this rare form of food allergy, the food does not cause anaphylaxis if the person does not exercise, and exercise does not cause anaphylaxis if the person does not eat the food.

• #29 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Symptoms of oral allergy syndrome may be more noticeable during pollen season. Symptoms usually resolve within minutes after the person stops eating the food. Most people have only localized symptoms (that is, affecting only the mouth). […] Less than 10 percent of people develop body-wide symptoms from fruits and vegetables (eg, vomiting, coughing), and 1 to 2 percent of people develop anaphylaxis. […] Food-dependent exercise-induced anaphylaxis — Some people develop anaphylaxis after eating a certain food and then exercising afterwards (within about four hours of eating the food). This is called „food-dependent exercise-induced anaphylaxis.” The reaction can occasionally occur after exercising first and then eating the food. Importantly, with this rare form of food allergy, the food does not cause anaphylaxis if the person does not exercise, and exercise does not cause anaphylaxis if the person does not eat the food.

• #30 Food Allergy and Food Intolerance – Causes, Symptoms, Treatments

  https://www.webmd.com/allergies/food-allergy-intolerances

  Non-IgE-mediated food allergies are characterized by a delayed onset of signs and symptoms which can occur over hours to even days following ingestion. […] The foods that you’ll react to are often those that you eat regularly. […] Adults usually don’t lose their allergies, but children do sometimes. Kids are more likely to outgrow allergies to milk, eggs, and soy than to peanuts, fish, and shrimp. […] When you have a life-threatening allergic reaction to a certain food, your doctor will probably recommend that you avoid similar foods, too. […] If you have exercise-induced food allergy, you won’t have a reaction unless you then do something physically active. As your body temperature goes up, you’ll begin to itch, get lightheaded, and could have hives or even anaphylaxis. […] The main way to deal with food allergies is to avoid them. For highly allergic people, even tiny amounts of an allergen (as little as 1/44,000 of a peanut kernel) can trigger a reaction.

• #31 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  It is possible to have a food allergy that does not involve immunoglobulin E (IgE) antibodies. With this type of food allergy, symptoms are usually slower to develop and last longer than those of classic (IgE-mediated) food allergies. Because IgE is not involved, non-IgE food allergies do not have a risk of anaphylaxis. […] The three main types of non-IgE food allergies are: […] Food protein-induced enterocolitis syndrome (FPIES) – This is a serious type of allergy that mostly affects infants; it causes severe gastrointestinal symptoms like continuous vomiting and diarrhea and can also cause low blood pressure. […] Food protein-induced allergic proctocolitis (FPIAP) – This condition affects the lower part of the colon. It can cause rectal bleeding and diarrhea in infants. […] Celiac disease and dermatitis herpetiformis – Celiac disease is a condition in which the immune system responds abnormally to a protein called gluten, which then leads to damage to the lining of the small intestine.

• #32 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  It is possible to have a food allergy that does not involve immunoglobulin E (IgE) antibodies. With this type of food allergy, symptoms are usually slower to develop and last longer than those of classic (IgE-mediated) food allergies. Because IgE is not involved, non-IgE food allergies do not have a risk of anaphylaxis. […] The three main types of non-IgE food allergies are: […] Food protein-induced enterocolitis syndrome (FPIES) – This is a serious type of allergy that mostly affects infants; it causes severe gastrointestinal symptoms like continuous vomiting and diarrhea and can also cause low blood pressure. […] Food protein-induced allergic proctocolitis (FPIAP) – This condition affects the lower part of the colon. It can cause rectal bleeding and diarrhea in infants. […] Celiac disease and dermatitis herpetiformis – Celiac disease is a condition in which the immune system responds abnormally to a protein called gluten, which then leads to damage to the lining of the small intestine.

• #33 What Is a Food Allergy? Types, Symptoms, Treatment

  https://kidswithfoodallergies.org/living-with-food-allergies/what-is-a-food-allergy/

  Sometimes food allergy symptoms are mild. Other times they can be severe. Take all allergic symptoms seriously. Mild and severe food allergy symptoms can lead to a serious allergic reaction called anaphylaxis. This reaction usually involves more than one part of the body and can get worse fast. […] Most symptoms of non-IgE-mediated food allergies involve the digestive tract (gut). Symptoms may include vomiting and diarrhea. The symptoms can take longer to appear and may last longer than IgE-mediated allergy symptoms. […] Food protein-induced enterocolitis syndrome (FPIES) is another type of food allergy. It most often affects young infants. Symptoms usually don’t appear for two or more hours after eating. Once the infant stops eating the food causing the allergy, the symptoms go away. Vomiting and diarrhea are the most common symptoms. Severe vomiting and diarrhea can occur which can lead to dehydration and even shock.

• #34 What Is a Food Allergy? Types, Symptoms, Treatment

  https://kidswithfoodallergies.org/living-with-food-allergies/what-is-a-food-allergy/

  Sometimes food allergy symptoms are mild. Other times they can be severe. Take all allergic symptoms seriously. Mild and severe food allergy symptoms can lead to a serious allergic reaction called anaphylaxis. This reaction usually involves more than one part of the body and can get worse fast. […] Most symptoms of non-IgE-mediated food allergies involve the digestive tract (gut). Symptoms may include vomiting and diarrhea. The symptoms can take longer to appear and may last longer than IgE-mediated allergy symptoms. […] Food protein-induced enterocolitis syndrome (FPIES) is another type of food allergy. It most often affects young infants. Symptoms usually don’t appear for two or more hours after eating. Once the infant stops eating the food causing the allergy, the symptoms go away. Vomiting and diarrhea are the most common symptoms. Severe vomiting and diarrhea can occur which can lead to dehydration and even shock.

• #35 Food allergy and intolerance | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/food-allergy-and-intolerance

  Anaphylaxis is a severe allergic reaction that needs urgent medical attention. Foods (such as peanuts, tree nuts, seafood, wheat, milk and eggs), insect bites and stings and some medicines are the most common allergens that cause anaphylaxis. […] Within minutes of exposure to the allergen, the person can have potentially life-threatening symptoms, which may include: difficult or noisy breathing; swelling of tongue; swelling or tightness in throat; wheeze or persistent cough; difficulty talking or hoarse voice; persistent dizziness or collapse; pale and floppy (young children). […] Several factors can influence the severity of anaphylaxis, including exercise, heat, alcohol, the amount of food eaten, and how food is prepared and consumed. […] The easiest way to treat a food allergy or intolerance is to eliminate the offending food/s from the diet.

• #36 Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/

  Another type of delayed food allergy reaction stems from food protein-induced enterocolitis syndrome (FPIES), a severe gastrointestinal reaction that generally occurs two to six hours after consuming milk, soy, certain grains and some other solid foods. It mostly occurs in young infants who are being exposed to these foods for the first time or who are being weaned. FPIES often involves repetitive vomiting and can lead to dehydration. In some instances, babies will develop bloody diarrhea. […] A food allergy will usually cause some sort of reaction every time the trigger food is eaten. Symptoms can vary from person to person, and you may not always experience the same symptoms during every reaction. […] It is impossible to predict how severe the next reaction might be, and all patients with food allergies should be carefully counseled about the risk of anaphylaxis, a potentially fatal reaction that is treated with epinephrine (adrenaline).

• #37 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Sudden-onset food allergy symptoms — The symptoms of a food allergy typically happen within minutes to two hours after eating and can vary from mild to severe or even life threatening. Symptoms experienced during a previous reaction do not predict how severe a future reaction will be. As an example, a person could have a mild reaction with hives after eating peanuts on one occasion and then have a serious anaphylactic reaction after eating peanuts another time. However, reactions do not necessarily get worse after each exposure. […] The sudden-onset symptoms of food allergy can include any combination of the following: […] Skin – Itching, flushing, hives (itchy bumps, also called „urticaria”), or swelling (angioedema) […] Eyes – Itching, tearing, redness, or swelling of the skin around the eyes

• #38 Food Allergies: Causes, Common Examples & Cures

  https://my.clevelandclinic.org/health/diseases/9196-food-allergies

  Usually, you experience food allergy symptoms within two hours of eating. […] The most serious complication of food allergies is anaphylaxis, or swelling in multiple body systems that can cause uncontrolled vomiting, difficulty breathing and a severe drop in blood pressure (anaphylactic shock). Severe anaphylaxis can be fatal. […] Allergic reactions are unpredictable, so they can become more severe with each additional exposure. And there’s no way to test for how severe your reaction to a food might be without eating it. So, even if you’ve only had a minor reaction to a food in the past, you still need to be cautious in the future. […] Sometimes. Many kids outgrow milk and egg allergies by age 6. But they rarely (less than 20% of the time) outgrow peanut, tree nut, shellfish or fish allergies.

• #39 Food Allergy

  https://www.aaaai.org/conditions-treatments/allergies/food-allergy

  If you have a food allergy, your immune system overreacts to a particular protein found in that food. Symptoms can occur when coming in contact with just a tiny amount of the food. […] Many people who think they are allergic to a food may actually be intolerant to it. Some of the symptoms of food intolerance and food allergy are similar, but the differences between the two are very important. If you are allergic to a food, this allergen triggers a response in the immune system. Food allergy reactions can be life-threatening, so people with this type of allergy must be very careful to avoid their food triggers. […] Food Protein-Induced Enterocolitis Syndrome (FPIES), sometimes referred to as a delayed food allergy, is a severe condition causing vomiting and diarrhea. In some cases, symptoms can progress to dehydration and shock brought on by low blood pressure and poor blood circulation.

• #40 The 8 Most Common Food Intolerances

  https://www.healthline.com/nutrition/common-food-intolerances

  Food intolerance may cause symptoms similar to a food allergy in some people. These include diarrhea, bloating, and rashes. […] A food intolerance is not the same as a food allergy, although some of the symptoms may be similar. […] When you have a food intolerance, symptoms usually begin within a few hours of eating the food that you are intolerant to. […] Yet, symptoms can be delayed by up to 48 hours and last for hours or even days, making the offending food especially difficult to pinpoint. […] While symptoms of food intolerances vary, they most often involve the digestive system, skin and respiratory system. […] Common symptoms include diarrhea, bloating, rashes, headaches, nausea, fatigue, abdominal pain, runny nose, reflux, and flushing of the skin. […] Symptoms of lactose intolerance include abdominal pain, bloating, diarrhea, gas, and nausea.

• #41 The 8 Most Common Food Intolerances

  https://www.healthline.com/nutrition/common-food-intolerances

  Food intolerance may cause symptoms similar to a food allergy in some people. These include diarrhea, bloating, and rashes. […] A food intolerance is not the same as a food allergy, although some of the symptoms may be similar. […] When you have a food intolerance, symptoms usually begin within a few hours of eating the food that you are intolerant to. […] Yet, symptoms can be delayed by up to 48 hours and last for hours or even days, making the offending food especially difficult to pinpoint. […] While symptoms of food intolerances vary, they most often involve the digestive system, skin and respiratory system. […] Common symptoms include diarrhea, bloating, rashes, headaches, nausea, fatigue, abdominal pain, runny nose, reflux, and flushing of the skin. […] Symptoms of lactose intolerance include abdominal pain, bloating, diarrhea, gas, and nausea.

• #42 The 8 Most Common Food Intolerances

  https://www.healthline.com/nutrition/common-food-intolerances

  Symptoms of non-celiac gluten sensitivity are similar to those of celiac disease and include bloating, abdominal pain, diarrhea or constipation, headaches, fatigue, joint pain, skin rash, depression or anxiety, and anemia. […] Symptoms of salicylate intolerance include stuffy nose, sinus infections, nasal and sinus polyps, asthma, diarrhea, gut inflammation (colitis), and hives. […] Symptoms of histamine intolerance include flushing of the skin, headaches, hives, itching, anxiety, stomach cramps, diarrhea, and low blood pressure. […] Symptoms of a FODMAP intolerance include bloating, diarrhea, gas, abdominal pain, and constipation. […] Common symptoms of sulfite sensitivity include hives, swelling of the skin, stuffy nose, hypotension, flushing, diarrhea, wheezing, and coughing. […] Symptoms of fructose malabsorption include reflux, gas, diarrhea, nausea, abdominal pain, vomiting, and bloating.

• #43 Could you develop a food allergy as an adult? | SSM Health

  https://www.ssmhealth.com/newsroom/blogs/ssm-health-matters/april-2022/could-you-develop-a-food-allergy-as-an-adult

  Imagine going to out to dinner and breaking out in hives as you eat your favorite shrimp dish. The truth is, while most food allergies do start in childhood, they can develop at any stage of life. In fact, millions of adults in the US have developed a sudden allergy to a food theyve eaten their entire lives. Symptoms can range from mild hives to life-threatening anaphylaxis which occurs when bronchial tissues swell, causing shortness of breath and loss of consciousness. The most common food allergy signs and symptoms include: tingling or itching in the mouth, hives, itching or eczema, swelling of the lips, face, tongue and throat or other parts of the body, wheezing, nasal congestion or trouble breathing, abdominal pain, diarrhea, nausea or vomiting, dizziness, lightheadedness or fainting. This is actually something that is pretty common and develops more in adulthood rather than childhood. If you suspect you have a food allergy, see your doctor and avoid exposure to the food altogether until your appointment. If you do eat the food and have a mild reaction, over-the-counter antihistamines may help relieve symptoms. If you have a more severe reaction and any signs and symptoms of anaphylaxis, seek emergency help.

• #44 Food Allergies | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/allergic-conditions/food/

  Millions of Americans have an allergy of some kind. Almost 6% of U.S. adults and children have a food allergy. Food allergy symptoms are most common in babies and children, but they can appear at any age. You can even develop an allergy to foods you have eaten for years with no problems. […] Symptoms of a food allergy can range from mild to severe. Just because an initial reaction causes few problems doesn’t mean that all reactions will be similar; a food that triggered only mild symptoms on one occasion may cause more severe symptoms at another time. […] The most severe allergic reaction is anaphylaxis — a life-threatening whole-body allergic reaction that can impair your breathing, cause a dramatic drop in your blood pressure and affect your heart rate. Anaphylaxis can come on within minutes of exposure to the trigger food. It can be fatal and must be treated promptly with an injection of epinephrine (adrenaline).

• #45 People can have food sensitivities without noticeable symptoms – long-term consumption of food allergens may lead to behavior and mood changes

  https://theconversation.com/people-can-have-food-sensitivities-without-noticeable-symptoms-long-term-consumption-of-food-allergens-may-lead-to-behavior-and-mood-changes-192570

  The prevalence of food allergies is increasing worldwide, approaching an epidemic level in some regions. […] Food allergies, or food hypersensitivities, result from the overreaction of the immune system to typically harmless proteins in food. They can manifest as a spectrum of symptoms, ranging from itching, redness and swelling for milder reactions, to vomiting, diarrhea, difficulty breathing and other potentially life-threatening symptoms for severe reactions. […] But some people who test positive on skin-prick allergy tests with moderate increases in IgE dont notice any allergy-related symptoms when they eat the allergen. This condition is sometimes referred to as asymptomatic sensitization. […] What I and other researchers have found is that food allergens can affect your brain and behavior if youre hypersensitized, even if you dont have typical food allergy symptoms.

• #46 Food Allergies: Causes, Common Examples & Cures

  https://my.clevelandclinic.org/health/diseases/9196-food-allergies

  Usually, you experience food allergy symptoms within two hours of eating. […] The most serious complication of food allergies is anaphylaxis, or swelling in multiple body systems that can cause uncontrolled vomiting, difficulty breathing and a severe drop in blood pressure (anaphylactic shock). Severe anaphylaxis can be fatal. […] Allergic reactions are unpredictable, so they can become more severe with each additional exposure. And there’s no way to test for how severe your reaction to a food might be without eating it. So, even if you’ve only had a minor reaction to a food in the past, you still need to be cautious in the future. […] Sometimes. Many kids outgrow milk and egg allergies by age 6. But they rarely (less than 20% of the time) outgrow peanut, tree nut, shellfish or fish allergies.

• #47 Food Allergies – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK482187/

  Wheezing occurs in approximately 25% of IgE-mediated food allergic reactions, but only approximately 10% of asthmatic patients have food-induced respiratory symptoms. […] Once the diagnosis of food hypersensitivity is established, the only proven therapy remains elimination of the offending allergen, with the absence of a cure. […] Over time, most children outgrow or become tolerant of food allergens to eggs, milk, wheat, and soy. However, allergies to nuts and shellfish are more long-standing. […] The non-IgE mediated food allergies resolve within the first year of life. […] Unfortunately, sporadic cases of fatal anaphylactic reactions still continue to occur. […] Anaphylaxis is a potentially fatal allergic reaction that occurs rapidly and involves multiple systems including cutaneous, cardiovascular, respiratory, and gastrointestinal symptom.

• #48 Food Allergy FAQ – Australasian Society of Clinical Immunology and Allergy (ASCIA)

  https://www.allergy.org.au/patients/food-allergy/faqs

  Food allergy occurs when a person’s immune system reacts to foods that are harmless to most people. The immune system produces allergy antibodies called Immunoglobulin E (IgE) that can result in symptoms. […] Signs and symptoms of mild to moderate allergic reactions to foods include: Swelling of the lips, face, eyes; Hives or welts on the skin; Abdominal pain, vomiting. […] Signs of anaphylaxis to foods include any one of the following: Difficult or noisy breathing; Swelling of the tongue; Swelling or tightness in the throat; Wheeze or persistent cough; Difficulty talking or hoarse voice; Persistent dizziness or collapse; Pale and floppy (in young children). […] Anaphylaxis is the most severe type of allergic reaction and should always be treated as a medical emergency. Anaphylaxis requires immediate treatment with adrenaline (epinephrine), which is injected into the outer mid-thigh muscle. Delayed treatment can result in fatal anaphylaxis. […] Most children allergic to cow’s milk, soy, wheat or egg will outgrow their food allergy. Allergic reactions to peanuts, tree nuts, sesame seeds and seafood persist in approximately 75% of children affected. […] When food allergy develops for the first time in adults, it usually persists.

• #49 Food Allergy — The Center for Allergy & Immunology

  https://www.kcallergycenter.com/food-allergy

  Some children with IgE-mediated food allergies will outgrow their sensitivity. For example, we know that milk, egg and soy allergies are more commonly outgrown during childhood and adolescence; while peanut and tree nut allergies are more likely to persist. Only about 20 percent of patients with peanut and tree nut allergies will outgrow them. […] Not all children outgrow their allergies. Certain factors have been associated with the persistence of food allergies, including: Age of first allergic reaction, Severity of allergic reaction, Whether the child has asthma, History of eczema.

• #50 Reaction signs and symptoms – Food Allergy Canada

  https://foodallergycanada.ca/food-allergy-basics/preventing-and-treating-allergic-reactions/reaction-signs-and-symptoms/

  Do not ignore early symptoms. […] Symptoms and severity of a reaction can differ each time. Keep in mind that an allergic reaction can start with mild symptoms that can get worse quickly. […] Symptoms of anaphylaxis generally include two or more of the following body systems: skin, respiratory, gastrointestinal, cardiovascular. […] Breathing or heart symptoms alone can be anaphylaxis. Keep in mind that hives dont always appear during anaphylactic reactions. […] Symptoms in babies up to 2 years of age may be indicated by a noticeable change in the sound of their cry, drooling, spitting up of food or drink after feeding, and the uncontrolled passing of stool or urine. […] Small children can have a hard time describing their symptoms. They may complain of a funny feeling in their mouth or throat. Or, they may say things like my mouth feels funny or my tongue is itchy.

• #51 Food Allergy Anaphylaxis in Infants and Toddlers | AAFA.org

  https://aafa.org/asthma-allergy-research/our-research/food-allergy-anaphylaxis-in-infants/

  Anaphylaxis is a severe allergic reaction that can be life-threatening if not treated quickly and properly. The most common causes of anaphylaxis are food, latex, insect stings and bites, and medicines. Food is the most common cause of anaphylaxis in young children. Anaphylaxis can be hard to recognize in infants and toddlers. Its important for parents and caregivers to know the signs and symptoms in young children and when to give epinephrine. […] The ITA study identified signs and symptoms of anaphylaxis that are specific to infants and toddlers and recognized by parents/caregivers. The most common symptoms of anaphylaxis in infants and toddlers were skin reactions, swelling, vomiting, and diarrhea. Signs related to the heart and blood vessels like blue-grey-white appearance and poor head control were not as common as skin or stomach/gut issues.

• #52 Reaction signs and symptoms – Food Allergy Canada

  https://foodallergycanada.ca/food-allergy-basics/preventing-and-treating-allergic-reactions/reaction-signs-and-symptoms/

  Do not ignore early symptoms. […] Symptoms and severity of a reaction can differ each time. Keep in mind that an allergic reaction can start with mild symptoms that can get worse quickly. […] Symptoms of anaphylaxis generally include two or more of the following body systems: skin, respiratory, gastrointestinal, cardiovascular. […] Breathing or heart symptoms alone can be anaphylaxis. Keep in mind that hives dont always appear during anaphylactic reactions. […] Symptoms in babies up to 2 years of age may be indicated by a noticeable change in the sound of their cry, drooling, spitting up of food or drink after feeding, and the uncontrolled passing of stool or urine. […] Small children can have a hard time describing their symptoms. They may complain of a funny feeling in their mouth or throat. Or, they may say things like my mouth feels funny or my tongue is itchy.

• #53 Food Allergy Anaphylaxis in Infants and Toddlers | AAFA.org

  https://aafa.org/asthma-allergy-research/our-research/food-allergy-anaphylaxis-in-infants/

  Compared to older children and adults, infants and toddlers are more likely to have: itching, rash, hives, vomiting, diarrhea, hoarse voice/cry, and sudden behavioral change. Compared to older children and adults, infants and toddlers are less likely to have: increased breathing rate, trouble breathing, and itchy throat. […] The results show that epinephrine is more likely to be used in infants and toddlers with a previously diagnosed food allergy, compared to children without a diagnosis at the time of their most severe allergic reaction. In children diagnosed with food allergy, the study found that 89% of children with anaphylaxis action plans were given epinephrine during their allergic reaction. Only 50% of children without a plan were given epinephrine. […] Anaphylaxis action plans and prompt diagnosis of food allergy are important so infants and toddlers with food allergy can be treated with epinephrine if they have a severe allergic reaction.

• #54 Food Allergy Treatment & Management | Allergy & Asthma Network

  https://allergyasthmanetwork.org/food-allergies/food-allergy-treatment-and-management/

  Approximately 20 million people live with food allergy in the United States. This includes about 16 million adults and 4 million children. Food allergy is caused by the immune system reacting to specific foods. Allergic reactions can range from mild to life-threatening. […] If you have a food allergy, you need to be prepared to treat a severe allergic reaction should one occur. The treatment for a severe allergic reaction, or anaphylaxis, is epinephrine. […] Epinephrine is the first-line treatment for a severe or life-threatening allergic reaction, or anaphylaxis. In most cases, symptoms of anaphylaxis involve two or more body organs (skin, respiratory system, digestive system, heart). […] Symptoms of food allergy in infants and young children include: Difficulty breathing, coughing or wheezing, Difficulty swallowing, Itchy hives on the skin, Swelling on lips, tongue or mouth, Nausea or vomiting, Cramping or diarrhea, In severe cases, a drop in blood pressure.

• #55 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  If you suspect that you or your child may have a food allergy, it’s important to see a clinician for evaluation. They will learn about your history (including past exposures to the food and what symptoms you have experienced) and likely do tests to determine whether you have a true food allergy and need to avoid a particular food. […] During a medical history, the clinician will ask questions about your past reactions to food, such as: […] What symptoms did you have? […] What particular food do you think caused the reaction? […] How much time passed between eating the food and the first symptoms? […] Did you exercise or do other physical activity after eating? […] Anyone who has one or more of the following symptoms suddenly after eating should seek medical care: […] Nausea or vomiting

• #56 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  If you suspect that you or your child may have a food allergy, it’s important to see a clinician for evaluation. They will learn about your history (including past exposures to the food and what symptoms you have experienced) and likely do tests to determine whether you have a true food allergy and need to avoid a particular food. […] During a medical history, the clinician will ask questions about your past reactions to food, such as: […] What symptoms did you have? […] What particular food do you think caused the reaction? […] How much time passed between eating the food and the first symptoms? […] Did you exercise or do other physical activity after eating? […] Anyone who has one or more of the following symptoms suddenly after eating should seek medical care: […] Nausea or vomiting

• #57 Patient education: Food allergy symptoms and diagnosis (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/food-allergy-symptoms-and-diagnosis-beyond-the-basics/print

  Cramping, abdominal pain, or diarrhea, especially if there is blood or mucus in the stool […] Itching or raised red hives on the skin […] Swelling, especially of the lips, mouth, face, or throat […] Wheezing, coughing, or difficulty breathing […] Lightheadedness or passing out […] Having a food allergy can be challenging. But it is possible to have a full life and enjoy cooking and eating, as long as you are prepared to recognize and treat symptoms of an allergic reaction.

• #58 Food Allergy Treatment & Management | Allergy & Asthma Network

  https://allergyasthmanetwork.org/food-allergies/food-allergy-treatment-and-management/

  If you notice any of these symptoms in your child, seek medical care right away. […] Eggs, cows milk and peanuts are the most common food allergies in children. […] If your anaphylaxis symptoms go away after one dose of epinephrine and you feel better, you may not need to seek emergency medical care. However, if you have severe anaphylaxis, if symptoms do not go away promptly or completely, or if symptoms return or worsen, you should take a second dose of epinephrine and seek emergency medical care. […] The best treatment for a severe food-allergic reaction is epinephrine. This is the only medication that will safely and effectively treat life-threatening symptoms of anaphylaxis. Use epinephrine first and fast. Any delay in treatment could make epinephrine less effective. […] When responding to symptoms of a life-threatening or severe allergic reaction to food, it is critical to use epinephrine immediately. Food allergy research shows that delaying giving epinephrine is the most common cause of death from food allergies.

• #59 Food Allergy Anaphylaxis in Infants and Toddlers | AAFA.org

  https://aafa.org/asthma-allergy-research/our-research/food-allergy-anaphylaxis-in-infants/

  Compared to older children and adults, infants and toddlers are more likely to have: itching, rash, hives, vomiting, diarrhea, hoarse voice/cry, and sudden behavioral change. Compared to older children and adults, infants and toddlers are less likely to have: increased breathing rate, trouble breathing, and itchy throat. […] The results show that epinephrine is more likely to be used in infants and toddlers with a previously diagnosed food allergy, compared to children without a diagnosis at the time of their most severe allergic reaction. In children diagnosed with food allergy, the study found that 89% of children with anaphylaxis action plans were given epinephrine during their allergic reaction. Only 50% of children without a plan were given epinephrine. […] Anaphylaxis action plans and prompt diagnosis of food allergy are important so infants and toddlers with food allergy can be treated with epinephrine if they have a severe allergic reaction.

• #60 FOOD ALLERGY – 6 SIGNS YOU SHOULD GO TO THE ER | Mya Care

  https://myacare.com/blog/food-allergy-6-signs-you-should-go-to-the-er

  Sometimes, a food allergy can trigger a severe reaction called Anaphylaxis. Symptoms of anaphylaxis can start mild but can quickly turn worse. […] If the symptoms keep on developing as the time passes, you need to seek medical care. […] Mild symptoms can quickly worsen and become fatal if not treated right away. […] It’s impossible to know what type of allergy symptoms you will experience. Don’t wait until your symptoms worsen and become fatal before seeking emergency care.

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