Allergology is a branch of medicine that deals with allergic diseases and helps their diagnosis and treatment.
An allergy occurs when the body mistakenly reacts to certain substances as if they were harmful, so the cells of the immune system produce antibodies to protect themselves against the foreign substance. The excessive immune response triggers an allergic reaction in the body.
Foreign substances can enter the body in several ways, such as through the skin, the respiratory tract or the digestive tract. Depending on this, we distinguish between skin, respiratory and food allergies, but many other external substances, including metals and medicines, can also cause allergies.