The use of antihistamines for allergies: New developments and recommendations exploring recent advancements in antihistamines and their effectiveness in treating allergies

Abstract

Allergies are hypersensitive immune responses to typically harmless substances known as allergens, which can include pollen, dust mites, pet dander, certain foods, and medications. Common allergic conditions include allergic rhinitis, characterized by symptoms such as sneezing, nasal congestion, and itchy eyes; urticaria (hives), which presents as itchy welts on the skin; and atopic dermatitis (eczema), leading to dry, itchy skin. The role of histamine is crucial in these allergic responses; when an allergen is encountered, the immune system releases histamine from mast cells, resulting in increased vascular permeability and the classic symptoms of allergies. Antihistamines are a primary treatment option that works by blocking the action of histamine at its receptors, thereby alleviating symptoms associated with allergic reactions.