Urticaria (Hives)
Urticaria is also known as hives. It is a skin disorder involving red circular hives/wheals, or raised welts. Hives lasting less than 6 weeks are considered to be acute, not chronic. It is generally viewed as an allergic response, autoimmune disorder or stress related disorder. The causes of chronic urticaria can be difficult to diagnose with only a few good tests available at this time.
Urticaria can be caused by a rather large number of things most of which are related to allergies, autoimmune disorders and histamine reactions. It is usually triggered by allergies to food, such as shellfish, nuts, strawberries, chocolates, and other things like feathers, animal hair, and cosmetics. Reactions to medications such as penicillin, aspirin, ibuprofen, and morphine are also causes. Others are insect bites, heat, cold, skin pressure, and infections such as Hepatitis B.
Benadryl etc. (Diphenhydramine)
Feb 15, 2007
Diphenhydramine is an antihistamine that has a sedative effect used in treating allergic reactions. It works by blocking the effect of histamine at h1 receptor sites and reduce the muscle contractions, thus reducing the onset of allergic symptoms. Continue reading…
