ANATOMY

Detailed explanation-1: -An allergy starts when your immune system mistakes a normally harmless substance for a dangerous invader. The immune system then produces antibodies that remain on the alert for that particular allergen.

Detailed explanation-2: -Food allergies develop when a person consumes or comes in contact with their allergen, and the immune system makes an antibody called immunoglobulin E, or IgE. IgE then circulates through the blood and attaches to immune cells called mast cells and basophils.

Detailed explanation-3: -You are allergic to the protein that is found in the pet’s dander (dead skin cells) saliva, and urine. The hair, fur, or feathers collect the dander. It can also carry other allergens like dust mites, mold, and pollen.

Detailed explanation-4: -When a harmless substance such as dust, mold, or pollen is encountered by a person who is allergic to that substance, the immune system may over react by producing antibodies that “attack” the allergen. The can cause wheezing, itching, runny nose, watery or itchy eyes, and other symptoms.

Detailed explanation-5: -tree and grass pollen (hay fever) house dust mites. foods, such as peanuts, milk and eggs (food allergy) animal fur, particularly from pets like cats and dogs. insect stings, such as bee and wasp stings. certain medicines.