What are the 4 types of allergies?

Four different types of allergic reactions are immediate, cytotoxic, immune-complex mediated and delayed hypersensitivity reactions. Allergic reactions occur when the body’s immune system has a reaction to a substance it sees as harmful, called an allergen.

What are the 7 types of allergies?

Types of Allergies
  • Drug Allergy.
  • Food Allergy.
  • Insect Allergy.
  • Latex Allergy.
  • Mold Allergy.
  • Pet Allergy.
  • Pollen Allergy.

What are the 8 types of allergens?

Congress passed the Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA). This law identified eight foods as major food allergens: milk, eggs, fish, Crustacean shellfish, tree nuts, peanuts, wheat, and soybeans. Eight foods are identified as major food allergens.

What are the 5 main allergies?

Five Most Common Allergies
  • Pollen Allergy. Pollen allergies include tree, grass, and weed pollen. …
  • Mold Allergy. Mold allergy is a common indoor allergen, but mold can also be found outdoors. …
  • Food Allergy. …
  • Dust Mite Allergy. …
  • Pet Allergy. …
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What are the 10 most common allergy?

The 10 most common allergies include foods, animals, pollen, mold, dust mites, medications, latex, insect stings, cockroaches, and perfumes/household chemicals.

What is the most common type of allergy?

Pollen. Pollen allergies are one of the most common allergies in the world. Tens of millions of Americans suffer from Pollen allergies. Pollen is a fine yellow powder that is transported from plant to plant by the wind, birds, insects, and other animals to help fertilize plants.

What are the 3 most common allergies?

Milk is the most common allergen for children, followed by egg and peanut. Shellfish is the most common allergen for adults, followed by peanut and tree nut.

What are the top 14 allergens?

The 14 allergens are: celery, cereals containing gluten (such as barley and oats), crustaceans (such as prawns, crabs and lobsters), eggs, fish, lupin, milk, molluscs (such as mussels and oysters), mustard, peanuts, sesame, soybeans, sulphur dioxide and sulphites (if the sulphur dioxide and sulphites are at a …

What is the rarest allergy?

The Rarest (And Strangest) Allergies

Water: Medically known as aquagenic urticaria, patients with a water allergy develop painful hives and rashes when their skin is exposed to water. An allergic reaction will develop regardless of the water temperature, and even when the water is purified.

How many types of allergies are there in the body?

What are the 4 types of allergic reactions? Type I (Immediate hypersensitivity), Type II(Cytotoxic reaction), Type III(Immune complex reaction), and Type IV (Delayed hypersensitivity) reactions.

What should I avoid if I have allergies?

Foods that most commonly cause an allergic reaction are:
  • milk.
  • eggs.
  • peanuts.
  • tree nuts.
  • fish.
  • shellfish.
  • some fruit and vegetables.

What kind of allergies make you itchy?

As such, if you are allergic to any of the following, you could have itchy skin as a symptom at point when you are exposed:
  • Pet dander.
  • Dust mites.
  • Certain foods.
  • Pollen.
  • Insect bites.
  • Certain medications.
  • Atopic dermatitis.

What is a Class 2 allergy?

Class 2 food allergens, such as apple and celery, are heat-labile, susceptible to digestion, and highly homologous with proteins in pollens. Class 2 FA (oral allergy syndrome, OAS) is typically the result of sensitization to labile proteins, such as pollens, encountered through the respiratory route.

What are the stages of allergies?

The human body carries out an allergic cascade in three stages: sensitization, “early-phase,” and “late-phase.”