Materiały źródłowe

• #1 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #2 Allergies: Types, Symptoms, Treatment & Management

  https://my.clevelandclinic.org/health/diseases/8610-allergies

  Allergies happen when your immune system overreacts to something thats usually not harmful like pollen, pet dander and certain foods. […] Allergies are your immune systems overreaction to foreign substances. […] Allergies happen when your immune system mistakenly identifies foreign proteins in pollen, pet dander, medications, food or other substances as something harmful (as if it were a virus or bacteria). […] You generally have to be exposed to a substance more than once before youll react to it. […] This alerts your immune system to attack, triggering your symptoms.

• #3 Allergies explained | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/allergies

  Allergy occurs when a person reacts to substances in the environment that are harmless to most people. These substances are known as allergens. […] An allergy occurs when the body overreacts to an allergen or trigger that is typically harmless to most people. […] Allergy is the result of mistaken identity. An allergen enters the body and is wrongly identified by the immune system as a dangerous substance. In response, the immune system makes antibodies to attack the allergen. […] The immune systems tendency to overreact to a harmless substance is thought to be genetic. The term atopy describes this genetic tendency.

• #4 What Causes Allergies? | Allergy | Family Allergy & AsthmaClick to open the search input field

  https://familyallergy.com/education/allergy/causes/

  No one knows for certain why certain people are allergic to certain things while others are not. We do know that allergies tend to run in families. […] Exposure to allergens at times when the body’s immune system is weak, such as after an illness or during pregnancy, may also play a role in the development of allergies. […] An allergy (or allergic reaction) is when the immune system mistakes a harmless substance for dangerous one and produces an antibody called “immunoglobulin E”, more commonly known as “IgE”. […] Each time IgE is produced, the IgE molecules attach themselves to mast cells that are found in large numbers in the eyes, nose, lungs, intestines, and immediately beneath the skin. […] These mast cells contain many chemicals, including a substance called histamine which, when released into the body, can cause a runny nose, sneezing, watery eyes, itching, hives, and wheezing. […] In some cases, reactions can occur in several places throughout the body.

• #5 Allergies: Causes, diagnosis, and treatment

  https://www.medicalnewstoday.com/articles/264419

  An allergic reaction occurs when the immune system becomes hypersensitive to foods, pollen, medications, bee venom, and other substances. […] A substance that causes an allergic reaction is called an allergen. […] Many allergens are everyday substances that are harmless to most people. However, anything can be an allergen if the immune system has a specific type of adverse reaction to it. […] One of the roles of the immune system is to destroy harmful substances in the body. If a person has an allergy to a substance, their immune system will react as though that substance is harmful and will try to destroy it. […] When an allergic reaction occurs, allergens bind to antibodies that the body produces called immunoglobin E (IgE). […] Once the allergen binds to IgE, specific types of cells including mast cells will release chemicals that trigger the symptoms of the allergic reaction. […] Histamine is one of these chemicals. It causes the muscles in the airways and walls of the blood vessels to tighten. It also instructs the lining of the nose to produce more mucus.

• #6 Overview: Allergies – InformedHealth.org – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK447112/

  Allergies arise if the body’s immune system overreacts to foreign substances (allergens) that are usually harmless in most people, such as pollen or certain foods. […] The tendency to have allergies often runs in families. The medical term for this is „atopy.” Whether or not someone actually develops an allergy will depend on various things, including environmental factors. Allergies and related conditions such as asthma may be more likely to develop in people who are exposed to air pollution and cigarette smoke, for instance. […] In allergic reactions, the body’s immune system reacts to certain foreign proteins (allergens) that are usually harmless in most people. It treats them like germs or foreign bodies. For instance, although dust mites and foods generally don’t cause any problems in the body, they trigger a reaction in people who are allergic to them. The immune system produces antibodies (IgE antibodies) to fight these substances because it thinks theyre harmful.

• #7 What Causes Allergies? | Allergy | Family Allergy & AsthmaClick to open the search input field

  https://familyallergy.com/education/allergy/causes/

  No one knows for certain why certain people are allergic to certain things while others are not. We do know that allergies tend to run in families. […] Exposure to allergens at times when the body’s immune system is weak, such as after an illness or during pregnancy, may also play a role in the development of allergies. […] An allergy (or allergic reaction) is when the immune system mistakes a harmless substance for dangerous one and produces an antibody called “immunoglobulin E”, more commonly known as “IgE”. […] Each time IgE is produced, the IgE molecules attach themselves to mast cells that are found in large numbers in the eyes, nose, lungs, intestines, and immediately beneath the skin. […] These mast cells contain many chemicals, including a substance called histamine which, when released into the body, can cause a runny nose, sneezing, watery eyes, itching, hives, and wheezing. […] In some cases, reactions can occur in several places throughout the body.

• #8 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Allergies are when your immune system overreacts to something called an allergen. An allergen is a foreign substance that’s not harmful to most people, such as pollen or pet dander (skin cells from animals with fur or feathers). But when you have allergies, your immune system tries to fight it off as it would a germ or virus. […] When you come into contact with an allergen, your immune system creates an antibody. The antibody serves as a tag that your immune system attaches to things it sees as dangerous. […] The mast cells then release chemicals, such as histamines, cytokines, and leukotrienes, that cause your allergy symptoms. […] If the allergen enters your body through a food you ate or a medicine you took, you may vomit or have diarrhea, and you may also be at a higher risk of anaphylaxis. Certain foods, such as peanuts, tree nuts, and shellfish, are more likely to cause anaphylaxis.

• #9 What Causes Allergies? Common Allergens & Other Factors

  https://www.verywellhealth.com/what-causes-allergies-8638245

  Allergies occur when a part of your immune system becomes inappropriately activated when it encounters an allergen. […] An allergic reaction occurs when the immune system overreacts to an allergen. […] The most common type of allergic reaction is an IgE-mediated reaction. […] The physiology of various allergic conditions (e.g., allergic rhinitis vs. allergic asthma) varies slightly, but they all have overlapping potential triggers, environmental factors, and genetic elements. […] Some chemical substances are more common than others for people to develop allergies to. […] Pollen, mold, pet dander, dust, insect stings, medications, and certain foods are all possible causes of allergies, and some people are allergic to more than one substance. […] Scientists have discovered many genes contributing to allergy development, so there is some genetic risk.

• #10 Allergy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545237/

  Allergy is described as an exaggerated response from the body’s immune system to otherwise inert substances present in the environment. […] This activity illustrates the etiology, pathophysiology, classification, and clinical symptomatology of allergy and highlights the role of health care providers in managing and educating the patients. […] Outline the etiology and pathophysiology of allergy. […] Allergy pathophysiology is viewable through different mechanisms depending on the cause. […] Anaphylaxis is the most severe form of a hypersensitivity reaction that has a rapid onset from minutes to hours. The reaction is caused by the activation of mast cells and basophils through the binding of cell membrane receptors to IgE antibodies. […] Common known triggers of anaphylaxis are bee stings, peanuts, (legumes), latex, and medications, but other substances can trigger this reaction.

• #11 Allergy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK545237/

  Allergy is described as an exaggerated response from the body’s immune system to otherwise inert substances present in the environment. […] This activity illustrates the etiology, pathophysiology, classification, and clinical symptomatology of allergy and highlights the role of health care providers in managing and educating the patients. […] Outline the etiology and pathophysiology of allergy. […] Allergy pathophysiology is viewable through different mechanisms depending on the cause. […] Anaphylaxis is the most severe form of a hypersensitivity reaction that has a rapid onset from minutes to hours. The reaction is caused by the activation of mast cells and basophils through the binding of cell membrane receptors to IgE antibodies. […] Common known triggers of anaphylaxis are bee stings, peanuts, (legumes), latex, and medications, but other substances can trigger this reaction.

• #12 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Allergies are when your immune system overreacts to something called an allergen. An allergen is a foreign substance that’s not harmful to most people, such as pollen or pet dander (skin cells from animals with fur or feathers). But when you have allergies, your immune system tries to fight it off as it would a germ or virus. […] When you come into contact with an allergen, your immune system creates an antibody. The antibody serves as a tag that your immune system attaches to things it sees as dangerous. […] The mast cells then release chemicals, such as histamines, cytokines, and leukotrienes, that cause your allergy symptoms. […] If the allergen enters your body through a food you ate or a medicine you took, you may vomit or have diarrhea, and you may also be at a higher risk of anaphylaxis. Certain foods, such as peanuts, tree nuts, and shellfish, are more likely to cause anaphylaxis.

• #13 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #14 Allergies

  https://www.nhs.uk/conditions/allergies/

  An allergy is where your body reacts to something that’s normally harmless like pollen, dust or animal fur. The symptoms can be mild, but for some people they can be very serious. […] Things that cause allergic reactions are called allergens. […] Common allergens include: tree and grass pollen (hay fever), house dust mites, foods, such as peanuts, milk and eggs (food allergy), animals, particularly pets like cats and dogs, insect stings, such as bee and wasp stings, certain medicines. […] A GP may arrange some allergy tests or refer you to a specialist allergy clinic to have them. […] Treatments for allergies include: trying to avoid the thing you’re allergic to whenever possible, medicines for mild allergic reactions like antihistamines, steroid tablets and steroid creams, emergency medicines called adrenaline auto-injectors, such as an EpiPen, for severe allergic reactions, desensitisation (immunotherapy) for severe allergic reactions this involves carefully exposing you to the thing you’re allergic to over time, so your body gradually gets used to it and does not react so badly (this should only be done by a medical professional).

• #15 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #16 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #17 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. […] When you have a food allergy, your immune system mistakenly identifies a specific food or a substance in food as something harmful. In response, your immune system triggers cells to make an antibody known as immunoglobulin E (IgE) to recognize the allergy-causing food or food substance, called an allergen. […] Most food allergies are triggered by certain proteins in: Crustacean shellfish, such as shrimp, lobster and crab. Peanuts. Tree nuts, such as walnuts and pecans. Fish. Chicken eggs. Cow’s milk. Wheat. Soy. […] Proteins in certain fruits, vegetables, nuts and spices cause the reaction because they’re similar to allergy-causing proteins found in certain pollens. This is an example of cross-reactivity.

• #18 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #19 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #20 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Skin allergies are triggered by allergens, such as latex, pet dander, poison ivy, plant pollen, sunlight, water, food, and bug venom or poop. […] If you are allergic to animals, it is usually caused by proteins that animals make in their fur, skin, pee, and spit. […] Insect allergies can come from cockroaches or bug venom. Proteins in the poop, spit, or body parts of cockroaches can be allergens. […] Dust allergy can be caused by a number of allergens that make up house dust. […] Spring allergies are often caused by tree pollen. […] About 4%-6% of kids and 4% of adults have some form of food allergy. Any food can cause a reaction, but most food allergies are caused by nine types of food. […] Drug allergies are usually caused by penicillin and related antibiotics (this is the most common drug allergy), sulfonamide antibiotics, anticonvulsants, NSAIDS such as aspirin and ibuprofen, and chemotherapy drugs.

• #21 Allergies – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

  Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee venom and pet dander. Allergies also can happen due to certain foods and medicines that don’t cause reactions in most people. […] Various substances can cause allergies. An allergy starts when the immune system mistakes a substance that’s usually harmless for a dangerous invader. The immune system then makes antibodies that stay on the alert for that specific allergen. When you’re exposed to the allergen again, these antibodies can release some immune system chemicals that cause allergy symptoms. […] Common allergy triggers include: Airborne allergens, such as pollen, animal dander, dust mites and mold. Certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk. Insect stings, such as from a bee or wasp. Medicines, especially penicillin or penicillin-based antibiotics. Latex or other substances you touch, which can cause allergic skin reactions.

• #22 Overview: Allergies – InformedHealth.org – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK447112/

  Allergies arise if the body’s immune system overreacts to foreign substances (allergens) that are usually harmless in most people, such as pollen or certain foods. […] The tendency to have allergies often runs in families. The medical term for this is „atopy.” Whether or not someone actually develops an allergy will depend on various things, including environmental factors. Allergies and related conditions such as asthma may be more likely to develop in people who are exposed to air pollution and cigarette smoke, for instance. […] In allergic reactions, the body’s immune system reacts to certain foreign proteins (allergens) that are usually harmless in most people. It treats them like germs or foreign bodies. For instance, although dust mites and foods generally don’t cause any problems in the body, they trigger a reaction in people who are allergic to them. The immune system produces antibodies (IgE antibodies) to fight these substances because it thinks theyre harmful.

• #23 Allergies explained | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/allergies

  Allergy occurs when a person reacts to substances in the environment that are harmless to most people. These substances are known as allergens. […] An allergy occurs when the body overreacts to an allergen or trigger that is typically harmless to most people. […] Allergy is the result of mistaken identity. An allergen enters the body and is wrongly identified by the immune system as a dangerous substance. In response, the immune system makes antibodies to attack the allergen. […] The immune systems tendency to overreact to a harmless substance is thought to be genetic. The term atopy describes this genetic tendency.

• #24 What Causes Allergies?|Simone Van Horne, MD

  https://vipobservation.com/aeroallergen-and-food-intolerance-testing/what-causes-allergies-understanding-different-types-of-allergic-triggers/

  In my years as an allergist, Ive seen firsthand how understanding allergy causes can transform a persons quality of life. […] The development of allergies involves a complex interplay of genetics and environment. […] When I discuss family history with patients, I often explain that having one allergic parent increases their risk by about 25%, while having two allergic parents raises it to around 60%. […] The genetic component isnt just about inheriting specific allergies but rather the tendency for your immune system to develop allergic responses. […] Ive found that exposure to allergens during infancy and early childhood can significantly impact allergy development. […] Through my years of practice, Ive noticed increasing evidence that air pollution, particularly diesel exhaust and industrial emissions, can make people more susceptible to developing allergies. […] The hygiene hypothesis has fascinated me throughout my career as it suggests our ultra-clean modern lifestyle might actually increase allergy risk.

• #25 The Causes of Allergies | SparkPeople

  https://www.sparkpeople.com/resource/wellness_articles.asp?id=852

  While scientists dont completely understand why allergies develop, they do believe that a combination of things create the immune system confusion, from genetic predisposition to environmental factors. […] There are two main categories of risks that can contribute to the development of allergies: those that you can’t change, and those that you can. […] Your family history. While sensitivities to specific allergens are not inherited, the tendency to develop allergies can be traced back to your parents. […] If one of your parents had allergies, you have a one in three chance of also developing an allergy. This risk jumps as high as 75% if both of your parents had allergies. […] Your age. Because repeated exposure to substances can prompt an allergic reaction, you are more likely to develop allergies as you get older.

• #26 What Causes Allergies? Common Allergens & Other Factors

  https://www.verywellhealth.com/what-causes-allergies-8638245

  Allergies occur when a part of your immune system becomes inappropriately activated when it encounters an allergen. […] An allergic reaction occurs when the immune system overreacts to an allergen. […] The most common type of allergic reaction is an IgE-mediated reaction. […] The physiology of various allergic conditions (e.g., allergic rhinitis vs. allergic asthma) varies slightly, but they all have overlapping potential triggers, environmental factors, and genetic elements. […] Some chemical substances are more common than others for people to develop allergies to. […] Pollen, mold, pet dander, dust, insect stings, medications, and certain foods are all possible causes of allergies, and some people are allergic to more than one substance. […] Scientists have discovered many genes contributing to allergy development, so there is some genetic risk.

• #27 What Causes Allergies? Common Allergens & Other Factors

  https://www.verywellhealth.com/what-causes-allergies-8638245

  However, additional factors such as your environment can also play a role. […] Its possible to develop allergies even if you dont have a family history of allergic disease. […] Some evidence suggests that certain kinds of illness may increase the risk of allergies in the weeks following the initial diagnosis. […] Additionally, having one type of allergic disease increases the risk of developing another in the future.

• #28 ¿Cuáles son las causas de la alergia?

  https://www.diater.com/o/en/patients/what-are-the-causes-of-allergies

  Allergic diseases are among the most common chronic diseases. Experts estimate that 30%-40% of the population worldwide suffer from one or more allergic diseases. […] In general, there are two essential factors in developing an allergic disease: genetic load and environmental exposure. […] In recent years, allergic diseases have had a considerable increase that cannot be explained by genetic changes, which occur very slowly. Therefore, environmental factors would be responsible for developing allergic diseases. […] Any natural substance may cause allergic diseases through inhalation, ingestion or contact. Such a substance is called an allergen. […] Any natural substance may cause allergies in the body. Such a substance is called an allergen, and the main agents that cause the allergic process are: […] Pollen, mites, fungi, foods, hymenoptera venoms, dander and drugs are substances that may cause an allergic reaction.

• #29 Allergy – Wikipedia

  https://en.wikipedia.org/wiki/Allergy

  A wide variety of foods can cause allergic reactions, but 90% of allergic responses to foods are caused by cow’s milk, soy, eggs, wheat, peanuts, tree nuts, fish, and shellfish. […] Allergic diseases are caused by inappropriate immunological responses to harmless antigens driven by a TH2-mediated immune response. […] The hygiene hypothesis was developed to explain the observation that hay fever and eczema, both allergic diseases, were less common in children from larger families, which were, it is presumed, exposed to more infectious agents through their siblings, than in children from families with only one child. […] Allergic diseases are more common in industrialized countries than in countries that are more traditional or agricultural, and there is a higher rate of allergic disease in urban populations versus rural populations, although these differences are becoming less defined.

• #30 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  Allergies are when the immune system over reacts to everyday proteins and relatively harmless substances like pollen, animal dander, dust, dust mites, foods and some commonly used drugs. […] The exact cause of allergies is not known. It is unclear why some people are prone to certain allergies to an extent that the condition may be life threatening while others are seemingly unaffected by such allergens. […] Sometimes allergic tendencies run in families. This is called atopy. The exact genetic cause for atopy is still unclear, however, there seems to be a rise of atopic cases over the past four decades. […] It is not known why this rising trend occurs. Some researchers believe the rise in pollution, and addition of newer chemicals and allergens into the environment, is adding to the rise of cases of atopy.

• #31 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  On the other hand, some believe that increased upbringing in a cleaner and more germ free environment could be responsible for a relatively under exposed immune system. […] This may be leading to over reactivity of the immune system when exposed to common proteins and substances in the environment. […] There is evidence that better armaments against infectious diseases, and better prevention of infections by increased cleanliness, could be a reason for increased risk of allergies. […] Some believe global warming also has an impact and changing patterns of natural vegetation and pollen production could be the reason for rising trends of allergies. […] Children with a family of allergic individuals are more likely to switch on TH2 immunity. This leads to increased amounts of allergy-related immunoglobulin E or Ig E in the blood.

• #32

  https://www.iowaallergyclinic.com/blog/the-rise-of-food-allergies-causes-and-solutions

  Food allergies have become a growing concern worldwide, with an increasing number of individuals, especially children, affected by them. Understanding the causes behind this rise and finding effective solutions is crucial for managing this public health issue. […] Food allergies occur when the immune system mistakenly identifies a harmless food protein as a threat and mounts an immune response. This can lead to a range of symptoms, from mild hives and itching to severe anaphylaxis, which can be life-threatening. Common food allergens include peanuts, tree nuts, milk, eggs, soy, wheat, fish, and shellfish. […] Family history and genetics play a significant role in the development of food allergies. If one or both parents have allergies, their children are more likely to develop them. […] The Hygiene Hypothesis: The theory suggests that cleaner environments, reduced exposure to infections, and the widespread use of antibiotics may limit the immune systems ability to develop properly, leading to an increased risk of allergies.

• #33 Allergy – Wikipedia

  https://en.wikipedia.org/wiki/Allergy

  A wide variety of foods can cause allergic reactions, but 90% of allergic responses to foods are caused by cow’s milk, soy, eggs, wheat, peanuts, tree nuts, fish, and shellfish. […] Allergic diseases are caused by inappropriate immunological responses to harmless antigens driven by a TH2-mediated immune response. […] The hygiene hypothesis was developed to explain the observation that hay fever and eczema, both allergic diseases, were less common in children from larger families, which were, it is presumed, exposed to more infectious agents through their siblings, than in children from families with only one child. […] Allergic diseases are more common in industrialized countries than in countries that are more traditional or agricultural, and there is a higher rate of allergic disease in urban populations versus rural populations, although these differences are becoming less defined.

• #34 What Are Allergies? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/allergies/guide/

  Environmental factors, such as pollution and climate change associated with rising temperatures, may be contributing to a rise in allergies. Changes in the duration and intensity of pollen and mold seasons mean more people are exposed to allergens for longer amounts of time. […] Many food allergies are transient; they can last for a few years and then go away.

• #35 Fall Allergies: What to Know About Causes, Symptoms and Treatment – The New York Times

  https://www.nytimes.com/article/fall-allergies-symptoms-treatment.html

  Allergies don’t only crop up in the spring. The persistent sniffles, clogged nose, itchy eyes and sneezing also happen in the fall — and, experts say, they’re getting more common, and more intense. […] Here’s what to know about the seasonal surge in allergies, and how to handle it. […] What causes fall allergies? Ragweed, a tall, willowy plant that grows in cities and rural areas alike, is the most common culprit behind fall allergies, said Dr. Michele Pham, an allergist and immunologist at the University of California, San Francisco. Just one pesky plant can release one billion grains of pollen, she said, which can irritate and inflame our sinuses. Ragweed starts to bloom in August and typically peaks in mid-September, but it can continue to grow into November. […] What a lot of people don’t realize is that the allergy seasons have almost doubled in length and gotten more intense because of climate change, said Kenneth Mendez, the president and chief executive of the Asthma and Allergy Foundation of America. Higher carbon dioxide emissions spur plants to release larger amounts of pollen, he said. “That’s why allergies are feeling a lot worse.”

• #36 Fall Allergies: What to Know About Causes, Symptoms and Treatment – The New York Times

  https://www.nytimes.com/article/fall-allergies-symptoms-treatment.html

  And as temperatures stay warmer for longer periods of time and the first frost happens later and later, plants like ragweed have more time to grow and release allergens, Mr. Mendez said. […] Crammed buildings and infrastructure absorb and retain the sun’s heat, making it as much as seven degrees hotter in urban areas during the day, according to the Environmental Protection Agency. That means allergies may be particularly intense if you live in a city, Mr. Mendez said, where those warmer temperatures allow ragweed to grow for longer.

• #37 What triggers seasonal allergies? | NIH MedlinePlus Magazine

  https://magazine.medlineplus.gov/article/what-triggers-seasonal-allergies

  Warmer temperatures linked to climate change are extending pollen seasons, allowing plants like ragweed (a major allergy culprit) to produce more pollen for longer periods. Increased carbon dioxide levels, another consequence of climate change, may make pollen even more potent, which can cause stronger allergic reactions.

• #38

  https://www.iowaallergyclinic.com/blog/the-rise-of-food-allergies-causes-and-solutions

  Increased exposure to pollutants and urban living conditions may contribute to the rise in food allergies. […] Diets high in processed foods and low in fresh fruits and vegetables can negatively impact gut health and immune function. […] Introducing allergenic foods to infants at an early age can reduce the risk of developing food allergies. […] Emerging research suggests that the gut microbiome plays a critical role in immune system development. Disruptions in gut bacteria due to diet, antibiotics, or other factors may increase allergy risk. […] Ongoing research is exploring new treatments and strategies for preventing and managing food allergies. Staying informed about the latest developments can help you make informed decisions about your care. […] Efforts to raise awareness, improve food labeling, and advocate for allergy-friendly policies in schools and public places are crucial for supporting individuals with food allergies.

• #39 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  Those at risk of developing allergies include atopic individuals who have a family member (usually a parent or a sibling) with a known allergic tendency. […] Other risk factors for developing allergies include: Sex – men are found to be more prone to allergies than women. The cause of this is unknown. […] It is speculated that this could be a two-way association. Children with allergies like asthma often get frequent respiratory tract infections and may need frequent courses of antibiotics. […] Exposure to allergens – children who are exposed to very low amounts of dust mites, pollens, certain food items and pets and animals often have an increased likelihood of allergies.

• #40 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  Those at risk of developing allergies include atopic individuals who have a family member (usually a parent or a sibling) with a known allergic tendency. […] Other risk factors for developing allergies include: Sex – men are found to be more prone to allergies than women. The cause of this is unknown. […] It is speculated that this could be a two-way association. Children with allergies like asthma often get frequent respiratory tract infections and may need frequent courses of antibiotics. […] Exposure to allergens – children who are exposed to very low amounts of dust mites, pollens, certain food items and pets and animals often have an increased likelihood of allergies.

• #41 What Are Allergies? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/allergies/guide/

  Allergies occur when your immune system overreacts to substances called allergens. Common allergens that can trigger allergic reactions include pollen, pet dander, and bee venom. People also have allergies to certain foods and medications. […] Your risk of developing allergies is higher if you: Have asthma, Have a family history of asthma or allergies, Are younger than 18. […] More than 100 genes are associated with allergies, although only one or two genes affect any given population. Some of these genes affect the immune response; others affect lung and airway function. […] Allergens are typically harmless substances that trigger an immune response and cause a reaction in people who are allergic. The allergic reaction occurs if the person inhales, touches, swallows, injects, or somehow comes into contact with the allergen.

• #42 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  Those at risk of developing allergies include atopic individuals who have a family member (usually a parent or a sibling) with a known allergic tendency. […] Other risk factors for developing allergies include: Sex – men are found to be more prone to allergies than women. The cause of this is unknown. […] It is speculated that this could be a two-way association. Children with allergies like asthma often get frequent respiratory tract infections and may need frequent courses of antibiotics. […] Exposure to allergens – children who are exposed to very low amounts of dust mites, pollens, certain food items and pets and animals often have an increased likelihood of allergies.

• #43 What Are Allergies? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/allergies/guide/

  Allergies occur when your immune system overreacts to substances called allergens. Common allergens that can trigger allergic reactions include pollen, pet dander, and bee venom. People also have allergies to certain foods and medications. […] Your risk of developing allergies is higher if you: Have asthma, Have a family history of asthma or allergies, Are younger than 18. […] More than 100 genes are associated with allergies, although only one or two genes affect any given population. Some of these genes affect the immune response; others affect lung and airway function. […] Allergens are typically harmless substances that trigger an immune response and cause a reaction in people who are allergic. The allergic reaction occurs if the person inhales, touches, swallows, injects, or somehow comes into contact with the allergen.

• #44 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Causes-of-Allergies.aspx

  Those at risk of developing allergies include atopic individuals who have a family member (usually a parent or a sibling) with a known allergic tendency. […] Other risk factors for developing allergies include: Sex – men are found to be more prone to allergies than women. The cause of this is unknown. […] It is speculated that this could be a two-way association. Children with allergies like asthma often get frequent respiratory tract infections and may need frequent courses of antibiotics. […] Exposure to allergens – children who are exposed to very low amounts of dust mites, pollens, certain food items and pets and animals often have an increased likelihood of allergies.

• #45 What Are Allergies? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/allergies/guide/

  Allergies occur when your immune system overreacts to substances called allergens. Common allergens that can trigger allergic reactions include pollen, pet dander, and bee venom. People also have allergies to certain foods and medications. […] Your risk of developing allergies is higher if you: Have asthma, Have a family history of asthma or allergies, Are younger than 18. […] More than 100 genes are associated with allergies, although only one or two genes affect any given population. Some of these genes affect the immune response; others affect lung and airway function. […] Allergens are typically harmless substances that trigger an immune response and cause a reaction in people who are allergic. The allergic reaction occurs if the person inhales, touches, swallows, injects, or somehow comes into contact with the allergen.

• #46 What Causes Sudden Allergies in Adults? Adult-Onset Allergy

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

  Although we often think of allergies as starting in childhood, the reality is that many adults find themselves suddenly dealing with allergies for the first time later in life. Recent studies have found that almost 50% of adults with food allergies developed at least one of their allergies in adulthood. […] Researchers arent sure exactly what causes an immune system to suddenly react to an allergen, but causes may include the following: […] Allergies seem to have a genetic component, which may only develop at certain ages or due to certain types of exposure. You may be at a higher risk of developing an allergy as an adult if your first-degree family members have allergies as well. […] Your immune system needs to be exposed to certain germs in order to develop defenses against them. If you werent exposed to many germs in childhood due to overuse of cleaning chemicals or antibacterial products in your home, you may not have had enough exposure to trigger an allergic reaction.

• #47 What Causes Allergies to Develop? | Carolina Asthma & Allergy

  https://www.carolinaasthma.com/blog/what-causes-a-person-to-develop-allergies/

  Just like childhood allergies, we do not completely understand why some people develop allergies and others dont. We do know there are complex genetic and environmental factors involved. […] The root cause of allergies is an overreaction of your immune system to typically harmless substances. When your immune system identifies these substances as threats, it produces IgE antibodies, leading to allergic reactions. This response can be influenced by both genetic and environmental factors. […] Adult-onset allergies can appear suddenly due to changes in your environment, immune system shifts, or exposure to new allergens. […] Yes, you can develop allergies at any age. Adult-onset allergies are common and can occur even if you’ve never had allergies before. Environmental changes, moving to new locations, or getting new pets can all trigger new allergic responses.

• #48 What Causes Sudden Allergies in Adults? Adult-Onset Allergy

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

  Although we often think of allergies as starting in childhood, the reality is that many adults find themselves suddenly dealing with allergies for the first time later in life. Recent studies have found that almost 50% of adults with food allergies developed at least one of their allergies in adulthood. […] Researchers arent sure exactly what causes an immune system to suddenly react to an allergen, but causes may include the following: […] Allergies seem to have a genetic component, which may only develop at certain ages or due to certain types of exposure. You may be at a higher risk of developing an allergy as an adult if your first-degree family members have allergies as well. […] Your immune system needs to be exposed to certain germs in order to develop defenses against them. If you werent exposed to many germs in childhood due to overuse of cleaning chemicals or antibacterial products in your home, you may not have had enough exposure to trigger an allergic reaction.

• #49 What Causes Sudden Allergies in Adults? Adult-Onset Allergy

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

  Some studies suggest this could make you more likely to develop allergies as an adult. […] Moving to a new geographical area with different plants, pollutants, or weather can cause you to be exposed to allergens that you werent exposed to before. […] You may experience adult-onset allergies after your body has been through physical or emotional stress, such as after: Throat infection caused by streptococci bacteria, Serious illness or surgery, Menopause, Bereavement or divorce. […] Unfortunately, the reason for these immune system triggers is unknown, but it is not uncommon. Although some people remain undiagnosed for decades (perhaps with milder, less frustrating symptoms that suddenly escalate), many develop full-blown allergies as adults.

• #50 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Some people live for years unaffected by allergies or common allergy triggers before they suddenly begin experiencing allergy symptoms. Adult-onset allergies can arise at any point in a persons life, but most patients who develop allergies in adulthood start experiencing symptoms in their 20s or 30s. […] It can be difficult to determine why a patient develops allergies at some point in their adulthood. […] The exact cause can be unknown, but there are a few theories as to why people develop adult-onset allergies: […] Age-related changes to the immune system can cause some people to begin experiencing allergies for the first time in their lives as the system becomes hyper-responsive to particular triggers. […] Exposure to a new environment with different allergens or possibly higher concentrations of allergens can result in the development of adult-onset allergies.

• #51 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Similar to exposure to a new environment, people who change their diet or begin eating foods they are not accustomed to eating can end up experiencing a food allergy. […] Studies have shown that the change in hormone levels during pregnancy can be responsible for the development of adult-onset allergies. […] In many cases, those who experience adult-onset allergies had parents or other family members who experienced the same thing when they reached adulthood.

• #52 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Some people live for years unaffected by allergies or common allergy triggers before they suddenly begin experiencing allergy symptoms. Adult-onset allergies can arise at any point in a persons life, but most patients who develop allergies in adulthood start experiencing symptoms in their 20s or 30s. […] It can be difficult to determine why a patient develops allergies at some point in their adulthood. […] The exact cause can be unknown, but there are a few theories as to why people develop adult-onset allergies: […] Age-related changes to the immune system can cause some people to begin experiencing allergies for the first time in their lives as the system becomes hyper-responsive to particular triggers. […] Exposure to a new environment with different allergens or possibly higher concentrations of allergens can result in the development of adult-onset allergies.

• #53 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Some people live for years unaffected by allergies or common allergy triggers before they suddenly begin experiencing allergy symptoms. Adult-onset allergies can arise at any point in a persons life, but most patients who develop allergies in adulthood start experiencing symptoms in their 20s or 30s. […] It can be difficult to determine why a patient develops allergies at some point in their adulthood. […] The exact cause can be unknown, but there are a few theories as to why people develop adult-onset allergies: […] Age-related changes to the immune system can cause some people to begin experiencing allergies for the first time in their lives as the system becomes hyper-responsive to particular triggers. […] Exposure to a new environment with different allergens or possibly higher concentrations of allergens can result in the development of adult-onset allergies.

• #54 What Causes Sudden Allergies in Adults? Adult-Onset Allergy

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

  Some studies suggest this could make you more likely to develop allergies as an adult. […] Moving to a new geographical area with different plants, pollutants, or weather can cause you to be exposed to allergens that you werent exposed to before. […] You may experience adult-onset allergies after your body has been through physical or emotional stress, such as after: Throat infection caused by streptococci bacteria, Serious illness or surgery, Menopause, Bereavement or divorce. […] Unfortunately, the reason for these immune system triggers is unknown, but it is not uncommon. Although some people remain undiagnosed for decades (perhaps with milder, less frustrating symptoms that suddenly escalate), many develop full-blown allergies as adults.

• #55 What Causes Sudden Allergies in Adults? Adult-Onset Allergy

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

  Some studies suggest this could make you more likely to develop allergies as an adult. […] Moving to a new geographical area with different plants, pollutants, or weather can cause you to be exposed to allergens that you werent exposed to before. […] You may experience adult-onset allergies after your body has been through physical or emotional stress, such as after: Throat infection caused by streptococci bacteria, Serious illness or surgery, Menopause, Bereavement or divorce. […] Unfortunately, the reason for these immune system triggers is unknown, but it is not uncommon. Although some people remain undiagnosed for decades (perhaps with milder, less frustrating symptoms that suddenly escalate), many develop full-blown allergies as adults.

• #56 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Similar to exposure to a new environment, people who change their diet or begin eating foods they are not accustomed to eating can end up experiencing a food allergy. […] Studies have shown that the change in hormone levels during pregnancy can be responsible for the development of adult-onset allergies. […] In many cases, those who experience adult-onset allergies had parents or other family members who experienced the same thing when they reached adulthood.

• #57 Adult-Onset Allergies: Causes, Symptoms, and Treatments

  https://www.langfordallergy.com/adult-onset-allergies-causes-symptoms-and-treatments/

  Similar to exposure to a new environment, people who change their diet or begin eating foods they are not accustomed to eating can end up experiencing a food allergy. […] Studies have shown that the change in hormone levels during pregnancy can be responsible for the development of adult-onset allergies. […] In many cases, those who experience adult-onset allergies had parents or other family members who experienced the same thing when they reached adulthood.

• #58 What Causes Allergies

  https://aaacod.com/education/what-causes-allergies/

  Once freed, histamine has the power to cause many kinds of allergic symptoms. […] It can stimulate the glands that secrete mucus, tears, and saliva — accounting for the running noses and eyes, congested lungs, and coughing of allergic patients. […] It causes swelling, which often results in stuffed-up feelings in the nose, ears, and chest. […] It can also cause headaches, hives, and general feelings of itchiness. […] And, finally, it can tighten the muscles in the lungs and gastrointestinal tract and bring on asthma attacks and abdominal cramps. […] In some people, allergic symptoms may be triggered by many nonallergic factors – including emotional stress, fatigue, infection, air pollution, and weather changes. […] This explains why you may react severely to allergens one day and not at all the next day.

• #59 What Causes Allergies

  https://aaacod.com/education/what-causes-allergies/

  These triggering factors add to what doctors call your “allergic load.” […] Your allergic load refers to the amount of allergens your body can handle at any given time. […] If you exceed your allergic load, symptoms develop. […] Part of successfully managing your condition is learning the factors that add to your allergic load, causing you to exceed your capacity to handle allergens without symptoms.

• #60 Allergies Worsen Night & Morning: Causes & Treatment | CAAC

  https://www.carolinaasthma.com/blog/why-are-my-allergies-worse-at-night/

  Its the same thing almost every single night. You brush your teeth, finish your nightly routine, climb into bed, and suddenly your allergies kick into high gear. The congestion, sneezing, and discomfort seem worse than they were all day and youre not imagining it. […] Allergy symptoms often worsen at night due to several key factors: […] The body produces more histamine at night, intensifying symptoms. […] The American College of Allergy, Asthma, Immunology (ACAAI) says allergies can worsen in the morning for several important reasons: […] Your body naturally releases more histamine at night as part of its circadian rhythm. This increased histamine production, combined with lying down (which can worsen congestion), often leads to more intense allergy symptoms during nighttime hours.

• #61 Allergies Worsen Night & Morning: Causes & Treatment | CAAC

  https://www.carolinaasthma.com/blog/why-are-my-allergies-worse-at-night/

  Sudden nighttime allergic reactions can be triggered by: […] Daily morning allergies often indicate exposure to allergens in your bedroom. Common culprits include dust mites in bedding, pet dander, mold spores, or pollen that entered through open windows or on clothing worn outside. […] Many people experience worse symptoms in the morning due to higher pollen counts and overnight exposure to indoor allergens, but experiences vary based on specific triggers.

• #62 Allergies Worsen Night & Morning: Causes & Treatment | CAAC

  https://www.carolinaasthma.com/blog/why-are-my-allergies-worse-at-night/

  Its the same thing almost every single night. You brush your teeth, finish your nightly routine, climb into bed, and suddenly your allergies kick into high gear. The congestion, sneezing, and discomfort seem worse than they were all day and youre not imagining it. […] Allergy symptoms often worsen at night due to several key factors: […] The body produces more histamine at night, intensifying symptoms. […] The American College of Allergy, Asthma, Immunology (ACAAI) says allergies can worsen in the morning for several important reasons: […] Your body naturally releases more histamine at night as part of its circadian rhythm. This increased histamine production, combined with lying down (which can worsen congestion), often leads to more intense allergy symptoms during nighttime hours.

• #63 Allergies Worsen Night & Morning: Causes & Treatment | CAAC

  https://www.carolinaasthma.com/blog/why-are-my-allergies-worse-at-night/

  Its the same thing almost every single night. You brush your teeth, finish your nightly routine, climb into bed, and suddenly your allergies kick into high gear. The congestion, sneezing, and discomfort seem worse than they were all day and youre not imagining it. […] Allergy symptoms often worsen at night due to several key factors: […] The body produces more histamine at night, intensifying symptoms. […] The American College of Allergy, Asthma, Immunology (ACAAI) says allergies can worsen in the morning for several important reasons: […] Your body naturally releases more histamine at night as part of its circadian rhythm. This increased histamine production, combined with lying down (which can worsen congestion), often leads to more intense allergy symptoms during nighttime hours.

• #64 Allergies Worsen Night & Morning: Causes & Treatment | CAAC

  https://www.carolinaasthma.com/blog/why-are-my-allergies-worse-at-night/

  Sudden nighttime allergic reactions can be triggered by: […] Daily morning allergies often indicate exposure to allergens in your bedroom. Common culprits include dust mites in bedding, pet dander, mold spores, or pollen that entered through open windows or on clothing worn outside. […] Many people experience worse symptoms in the morning due to higher pollen counts and overnight exposure to indoor allergens, but experiences vary based on specific triggers.

• #65 A Complete Guide to Allergies – Allergy & Asthma Network

  https://allergyasthmanetwork.org/allergies/

  A person with an allergy has an overactive immune system. When people have an allergy, their immune system reacts to harmless things, such as grass pollen, pet fur, or a specific food. Something that is normally harmless but causes a reaction is called an allergen. […] The human immune system is the bodys defense against sickness and infection. It tries to prevent germs, allergens and foreign substances from entering the body and then works to eliminate any that get through. […] In people with allergies, the usual way the immune system treats things like pollen, mold, dust mites or animal dander is changed, and the body identifies these as dangerous invaders. Then, your immune system creates a specific IgE antibody to fight it if the allergen enters your body again. […] Allergies are not just a nuisance they are a serious health issue. Allergies can interfere with day-to-day activities and impact quality of life.

• #66 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Several types of medications can help relieve the symptoms of allergies. […] Steroids, known medically as corticosteroids, can reduce swelling and redness from allergies. […] Antihistamines have been used for years to treat allergy symptoms. […] Decongestants relieve a stuffy nose and are often prescribed along with antihistamines for allergies. […] Mast cell stabilizers treat mild to moderate inflammation. […] Leukotriene modifiers treat asthma and nasal allergy symptoms. […] Epinephrine shots are the most important treatment for a severe allergic reaction (anaphylaxis). […] Having allergies increases your risk of developing these other medical problems: anaphylaxis, asthma, sinusitis, and ear or lung infections. […] In general, experts recommend that you know what triggers your allergies and avoid these allergens as much as possible.

• #67 Understanding Allergies: Causes And Treatments Explained

  https://www.lungmds.com/pulmonary-symptoms/allergies/

  An allergy is the bodys defense against a foreign substance. Some of the common causes are: pollen, pet dander, food, etc. The severity depends on the person and can sometimes be life-threatening. […] The cause of an allergy can be from anything and begins when your body thinks that the substance is harmful. Typically, the reaction is evident after the second exposure to the allergen. Some common causes of allergies may include latex, medications, insect stings, foods, dander, pollen, dust mites, and mold. […] You are at a higher risk of developing an allergy if you have a family history of allergies or asthma, if you are a child, or have a history of asthma and other allergic conditions. Any of these factors will put you at a higher risk for developing allergies. […] There are many complications that are associated with allergies. In cases of severe allergies, you are at a risk of anaphylaxis. Foods, medications, and stings are the most common causes of anaphylaxis. If you have an allergy, you are also at a risk for having asthma too. Oftentimes, allergies will cause an asthma flare up, and it will be very difficult to breathe. You are at a risk for contracting sinusitis, ear infections, or lung infections if you have hay fever or asthma.

• #68 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Several types of medications can help relieve the symptoms of allergies. […] Steroids, known medically as corticosteroids, can reduce swelling and redness from allergies. […] Antihistamines have been used for years to treat allergy symptoms. […] Decongestants relieve a stuffy nose and are often prescribed along with antihistamines for allergies. […] Mast cell stabilizers treat mild to moderate inflammation. […] Leukotriene modifiers treat asthma and nasal allergy symptoms. […] Epinephrine shots are the most important treatment for a severe allergic reaction (anaphylaxis). […] Having allergies increases your risk of developing these other medical problems: anaphylaxis, asthma, sinusitis, and ear or lung infections. […] In general, experts recommend that you know what triggers your allergies and avoid these allergens as much as possible.

• #69 What are the causes, complications and risk factors of allergies?

  https://www.mymed.com/diseases-conditions/allergies/what-are-the-causes-complications-and-risk-factors-of-allergies

  An allergy occurs when an allergen elicits an abnormal immune system response to a substance (the allergen) that should not be typically be deemed harmful. […] Allergy sufferers, therefore, have elevated IgE levels in their blood. […] The risk of an allergy developing may be increased if the sufferer has a family history of allergies or asthma. […] While the hereditary factor of allergies is not an absolute certainty, the theory is that should ones parents have allergies, then he or she may be more prone to developing them too. […] Having allergies can increase the risk of other medical issues, including asthma. […] If one has an allergy, they are more likely to develop asthma. […] The most common triggers are medications such as penicillin, food such as nuts and shellfish, and insect stings (particularly bee stings). […] The risk of contracting such conditions, often referred to as allergic bronchopulmonary aspergillosis or allergic fungal sinusitis, is increased when a person has a pre-existing allergy.

• #70 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Several types of medications can help relieve the symptoms of allergies. […] Steroids, known medically as corticosteroids, can reduce swelling and redness from allergies. […] Antihistamines have been used for years to treat allergy symptoms. […] Decongestants relieve a stuffy nose and are often prescribed along with antihistamines for allergies. […] Mast cell stabilizers treat mild to moderate inflammation. […] Leukotriene modifiers treat asthma and nasal allergy symptoms. […] Epinephrine shots are the most important treatment for a severe allergic reaction (anaphylaxis). […] Having allergies increases your risk of developing these other medical problems: anaphylaxis, asthma, sinusitis, and ear or lung infections. […] In general, experts recommend that you know what triggers your allergies and avoid these allergens as much as possible.

• #71 Allergy Symptoms: Signs, Symptoms, and Treatment

  https://www.webmd.com/allergies/allergy-symptoms

  Several types of medications can help relieve the symptoms of allergies. […] Steroids, known medically as corticosteroids, can reduce swelling and redness from allergies. […] Antihistamines have been used for years to treat allergy symptoms. […] Decongestants relieve a stuffy nose and are often prescribed along with antihistamines for allergies. […] Mast cell stabilizers treat mild to moderate inflammation. […] Leukotriene modifiers treat asthma and nasal allergy symptoms. […] Epinephrine shots are the most important treatment for a severe allergic reaction (anaphylaxis). […] Having allergies increases your risk of developing these other medical problems: anaphylaxis, asthma, sinusitis, and ear or lung infections. […] In general, experts recommend that you know what triggers your allergies and avoid these allergens as much as possible.

• #72 Understanding Allergies: Causes And Treatments Explained

  https://www.lungmds.com/pulmonary-symptoms/allergies/

  An allergy is the bodys defense against a foreign substance. Some of the common causes are: pollen, pet dander, food, etc. The severity depends on the person and can sometimes be life-threatening. […] The cause of an allergy can be from anything and begins when your body thinks that the substance is harmful. Typically, the reaction is evident after the second exposure to the allergen. Some common causes of allergies may include latex, medications, insect stings, foods, dander, pollen, dust mites, and mold. […] You are at a higher risk of developing an allergy if you have a family history of allergies or asthma, if you are a child, or have a history of asthma and other allergic conditions. Any of these factors will put you at a higher risk for developing allergies. […] There are many complications that are associated with allergies. In cases of severe allergies, you are at a risk of anaphylaxis. Foods, medications, and stings are the most common causes of anaphylaxis. If you have an allergy, you are also at a risk for having asthma too. Oftentimes, allergies will cause an asthma flare up, and it will be very difficult to breathe. You are at a risk for contracting sinusitis, ear infections, or lung infections if you have hay fever or asthma.

• #73 What triggers seasonal allergies? | NIH MedlinePlus Magazine

  https://magazine.medlineplus.gov/article/what-triggers-seasonal-allergies

  Pollen allergy symptoms include coughing, sneezing, a runny or stuffy nose, and itchy, watery eyes. […] Pollen is harmless, but if you have seasonal allergies, your body mistakes the pollen for something dangerous. This reaction causes symptoms like coughing, sneezing, a runny or stuffy nose, and itchy, watery eyes. […] If you experience symptoms only at certain times of year, you may have a seasonal allergy. […] Knowing the specific cause of your allergies can help you prevent exposure and treat your reactions. […] Seasonal allergies often run in families. If your parents or siblings have allergies, you’re more likely to have them. […] Many people with seasonal allergies also have asthma. Pollen can trigger asthma, causing symptoms such as shortness of breath, wheezing, and coughing.

• #74 What Are Allergies? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/allergies/guide/

  Environmental factors, such as pollution and climate change associated with rising temperatures, may be contributing to a rise in allergies. Changes in the duration and intensity of pollen and mold seasons mean more people are exposed to allergens for longer amounts of time. […] Many food allergies are transient; they can last for a few years and then go away.

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

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

  Learning about patterns of cross-reactivity and what must be avoided is one of the reasons why people with food allergies should receive care from a board-certified allergist. […] The primary way to manage a food allergy is to avoid consuming the food that causes you problems. […] Many people with food allergies wonder whether their condition is permanent. […] Omalizumab (Xolair) is a prescription injection that can help reduce allergic reactions to food in people 1 year of age and older. […] There is no definitive answer. Allergies to milk, eggs, wheat and soy may disappear over time, while allergies to peanuts, tree nuts, fish and shellfish tend to be lifelong. […] Currently, for most food allergies, avoiding the food you are allergic to is the only way to protect against a reaction.

• #76 Causes and Risk Factors of Allergies

  https://www.health.com/allergy-causes-7109911

  Allergies come in many forms and can be caused by a variety of risk factors. Symptoms occur when your body mistakes a harmless substance for a harmful one, triggering an unnecessary immune response known as an allergic reaction. […] Allergies are caused by your body’s immune system reacting to a harmless substance known as an allergen. The immune system mistakes these substances for dangerous invaders and sends special immune proteins (antibodies) to fight them off, leading to an allergic reaction. […] The exact causes of each allergy are unknown, but allergies are generally due to a combination of an immune response and environmental risk factors.

• #77 ¿Cuáles son las causas de la alergia?

  https://www.diater.com/o/en/patients/what-are-the-causes-of-allergies

  Allergic diseases are among the most common chronic diseases. Experts estimate that 30%-40% of the population worldwide suffer from one or more allergic diseases. […] In general, there are two essential factors in developing an allergic disease: genetic load and environmental exposure. […] In recent years, allergic diseases have had a considerable increase that cannot be explained by genetic changes, which occur very slowly. Therefore, environmental factors would be responsible for developing allergic diseases. […] Any natural substance may cause allergic diseases through inhalation, ingestion or contact. Such a substance is called an allergen. […] Any natural substance may cause allergies in the body. Such a substance is called an allergen, and the main agents that cause the allergic process are: […] Pollen, mites, fungi, foods, hymenoptera venoms, dander and drugs are substances that may cause an allergic reaction.

• #78 A Complete Guide to Allergies – Allergy & Asthma Network

  https://allergyasthmanetwork.org/allergies/

  A person with an allergy has an overactive immune system. When people have an allergy, their immune system reacts to harmless things, such as grass pollen, pet fur, or a specific food. Something that is normally harmless but causes a reaction is called an allergen. […] The human immune system is the bodys defense against sickness and infection. It tries to prevent germs, allergens and foreign substances from entering the body and then works to eliminate any that get through. […] In people with allergies, the usual way the immune system treats things like pollen, mold, dust mites or animal dander is changed, and the body identifies these as dangerous invaders. Then, your immune system creates a specific IgE antibody to fight it if the allergen enters your body again. […] Allergies are not just a nuisance they are a serious health issue. Allergies can interfere with day-to-day activities and impact quality of life.

Zobacz więcej