Antihistamines

Antihistamines are drugs commonly used to relieve the symptoms of allergic reactions, such as sneezing, itching, and inflammation. They act by blocking the effects of histamine, a substance released by cells of the immune system as part of an allergic response. By preventing histamine from binding to its receptors on target cells, antihistamines can reduce or eliminate many of the symptoms associated with allergies, such as a runny nose, itchy eyes, and hives. Antihistamines are available in a variety of forms, including pills, liquids, and creams and ointments. They are an important part of treating and managing allergic reactions, and may be used in combination with other treatments.