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Symptoms include recurrent episodes of hives, which are red, itchy, and swollen areas on the skin. These episodes can be triggered by various factors, including heat, stress, or for no identifiable reason. [6] Autoimmune urticaria is a relatively rare condition, affecting a small percentage of the population. [1]
As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic reaction, when in fact it is the act of being scratched that causes a wheal to appear. These wheals are a subset of urticaria (hives), and appear within minutes, in some cases accompanied by itching. The first outbreak of ...
Physical urticaria is a distinct subgroup of urticaria (hives) that are induced by an exogenous physical stimulus rather than occurring spontaneously. [1] There are seven subcategories that are recognized as independent diseases. [2] [3] Physical urticaria is known to be painful, itchy and physically unappealing; it can recur for months to ...
Cholinergic urticaria typically presents with a number of small papular hives all over the body, that involve cutaneous inflammation (wheals) and severe nerve pain, which usually develops in response to exercise, bathing, staying in a heated environment, spicy foods, or emotional stress.
Nara Smith is opening up about her health challenges.. The 23-year-old social media star got candid in a new Instagram post that detailed her journey with eczema and eventually Lupus after she ...
Hives, or urticaria, is a form of skin rash with red, raised, itchy bumps. [1] They may also burn or sting. [2] Hives can appear anywhere on the surface of the skin. Whether the trigger is allergic or not, a complex release of inflammatory mediators, including histamine from cutaneous mast cells, results in fluid leakage from superficial blood ...
Cold urticaria (essentially meaning cold hives) is a disorder in which large red welts called hives (urticaria) form on the skin after exposure to a cold stimulus. [1] The hives are usually itchy and often the hands, feet and other parts of the body will become itchy and swollen as well.
Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a "weal and flare" reaction characteristic of hives and angioedema. [30] With insect stings, a large local reaction may occur in the form of an area of skin redness greater than 10 cm in size that can last one to two days. [31]