Urticaria (from the Latin urtica, nettle,) commonly referred to as hives, is a kind of skin rash notable for pale red, raised, itchy bumps. Hives might also cause a burning or stinging sensation. Hives are frequently caused by allergic reactions; however, there are many nonallergic causes. Most cases of hives lasting less than six weeks (acute urticaria) are the result of an allergic trigger. Chronic urticaria (hives lasting longer than six weeks) is rarely due to an allergy.
The majority of chronic hives cases have an unknown (idiopathic) cause. In perhaps as many as 30–40% of patients with chronic idiopathic urticaria, it is caused by an autoimmune reaction. Acute viral infection is another common cause of acute urticaria (viral exanthem). Less common causes of hives include friction, pressure, temperature extremes, exercise, and sunlight.
Other articles related to "acute urticaria, urticaria":
... For acute urticaria, some topical creams, such as hydrocortisone, fluocinonide, or desonide, can also be prescribed to relieve itching ... To boost relief for severe anaphylactic urticaria, a dermatologist will also administer steroid shots intramuscularly ... afamelanotide (formerly CUV1647), for the treatment of solar urticaria, a type of urticaria that develops in response to exposure to specific wavelengths of light ...
Famous quotes containing the word acute:
“Only the most acute and active animals are capable of boredom.A theme for a great poet would be Gods boredom on the seventh day of creation.”
—Friedrich Nietzsche (18441900)