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Hives What it looks like : Also called urticaria, hives are raised welts in the skin that appear red or discolored. They range in size from small bumps to larger patches.
Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [2] The patches of rash may appear on different body parts, [2] with variable duration from minutes to days, and do not leave any long-lasting skin change. [2]
The rash appears immediately in irritant contact dermatitis; in allergic contact dermatitis, the rash sometimes does not appear until 24–72 hours after exposure to the allergen. Blisters or wheals: Blisters, wheals (welts), and urticaria (hives) often form in a pattern where skin was directly exposed to the allergen or irritant.
Positive tests, however, may not necessarily mean there is a significant allergy to the substance in question. [14] Early exposure of children to potential allergens may be protective. [5] Treatments for allergies include avoidance of known allergens and the use of medications such as steroids and antihistamines. [6]
The hereditary form (HAE) often goes undetected for a long time, as its symptoms resemble those of more common disorders, such as allergy or intestinal colic. An important clue is the failure of hereditary angioedema to respond to antihistamines or steroids, a characteristic that distinguishes it from allergic reactions. It is particularly ...
Their use is reasonable in those who do not respond to or are not tolerant of steroids. [ 67 ] [ 68 ] Treatments are typically recommended for short or fixed periods of time rather than indefinitely. [ 5 ] [ 69 ] Tacrolimus 0.1% has generally proved more effective than pimecrolimus, and equal in effect to mid-potency topical steroids. [ 70 ]
Urticaria, commonly known as hives, has been recognized as a medical condition for centuries, with descriptions of the characteristic skin lesions appearing in ancient medical texts. However, the understanding of urticaria as an autoimmune condition is a relatively recent development in medical history.
Rituximab is used when people do not respond to other treatments. [ 21 ] [ 22 ] As of 2016, treatments for amyopathic dermatomyositis in adults did not have a strong evidence base; published treatments included antimalarial medications, steroids , taken or orally or applied to the skin , calcineurin inhibitors applied to the skin, dapsone ...