Sudden appearance of itchy, raised wheals on the skin caused by contact allergy, strings, bites or hypersensitivity to ingested allergens or drugs. Prompt administration of an antihistamine under veterinary guidance may be required.
A blood reaction of the skin. marked by the transient appearance of smooth. slightly-elevated patches which are redder or paler than the surrounding skin. This condition often is attended by severe itching.
MS = A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress. AN = a form of immediate hypersensitivity; note X ref UI = D014581
A skin condition characterized by welts that itch intensely, caused by an allergic reaction, an infection, or a nervous condition. Also called hives, nettle rash. [See: Allergic Reactions to Topical Fluorides | Allergic Reactions to Ingested Fluorides
An eruption of itching wheals, usually of systemic origin; it may be due to a state of hypersensitivity to foods or drugs, foci of infection, physical agents (heat, cold, light, friction), or psychic stimuli.
Chronic hives : a rash with the following characteristics: red to pink in color, shape varies from small bumps to blotchy or streaky areas, very itchy, and appearing and disappearing at irregular time intervals - when they disappear, they do so without a trace. The condition is often accompanied by inflammation of the lips, tongue and hands.
Another name for the hives . Raised, itchy areas of skin that are usually a sign of an allergic reaction. Hives can be rounded or flat-topped but are always elevated above the surrounding skin. They reflect circumscribed dermal edema (local swelling of the skin). The hives are usually well circumscribed but may be coalescent and will blanch with pressure. See the entire definition of Urticaria
Itchy, swollen, red bumps or patches on the skin that appear suddenly as a result of the body's adverse reaction to certain allergens. They can appear anywhere on the body including the face, lips, tongue, throat or ears. Hives vary in size and can last for minutes or days.
a vascular reaction of the skin marked by the transient appearance of smooth, slightly elevated patches (wheals) which are redder or paler than the surrounding skin and often attended by severe itching. Also called hives.
Commonly known as hives, urticaria is one of the most common dermatological conditions seen by allergists. Urticaria is not just an allergic disease, however. It can be caused by metabolic diseases, medications, infectious diseases, autoimmune disease, or physical sensitivity. Traditional allergies to foods or medications as well as viral illness are frequent causes of acute urticaria which usually lasts only a few hours but may last up to 6 weeks. Chronic urticaria (lasting more than 6 weeks) is more complex, given the vast number of potential triggers. Symptoms include sudden onset; initial itching; then swelling of the surface of the skin into red or skin-colored welts (wheals) with clearly defined edges; welts turn white on touching; new welts develop when the skin is scratched; usually disappear within minutes or hours. Welts enlarge, change shape, spread or join together to form large flat raised areas.
Urticaria or hives is a relatively common form of allergic reaction that causes raised red skin welts. Urticaria is also known as nettle rash or uredo. These welts can be 5 mm (0.2 inches) in diameter or more, itch severely, and often have a pale border.