antialérgico

Antialérgico is a term used to describe a substance or treatment that counteracts or prevents allergic reactions. Allergic reactions occur when the immune system mistakenly identifies a harmless substance, known as an allergen, as a threat and mounts an exaggerated response. Antiallergics work by interfering with this process.

The most common type of antiallergic medication is an antihistamine. Antihistamines block the action of histamine, a chemical released by the body during an allergic reaction. Histamine is responsible for many allergy symptoms, such as itching, sneezing, runny nose, and hives. Other antiallergic treatments may include corticosteroids, which reduce inflammation, or decongestants, which relieve nasal congestion.

Antiallergics are used to treat a wide range of allergic conditions, including hay fever (allergic rhinitis), hives (urticaria), eczema, insect bite reactions, and food allergies. They can be taken orally, applied topically as creams or ointments, or administered as nasal sprays or eye drops, depending on the type of allergy and its severity.

While antiallergics are effective in managing allergy symptoms, they do not cure the underlying allergy. Avoiding known allergens is a crucial part of allergy management. Some antiallergics can cause side effects, such as drowsiness or dry mouth, and it is important to consult with a healthcare professional for appropriate diagnosis and treatment.