ALL has various meanings in the Medicine category. Discover the full forms, definitions, and usage contexts of ALL in Medicine.
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes little or no problem in most people. These diseases include hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis. Symptoms may include red eyes, an itchy rash, runny nose, shortness of breath, or swelling. Food intolerances and food poisoning are separate conditions.
MedicineAllergies occur when your immune system reacts to a foreign substance such as pollen, bee venom or pet dander that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies. Some antibodies protect you from unwanted invaders that could make you sick or cause infection.
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