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Less common causes include: physical factors, biological agents such as semen, latex, hormonal changes, food additives and colors, and topical medications. [18] Physical factors such as exercise (known as exercise-induced anaphylaxis) or temperature (either hot or cold) may also act as triggers through their direct effects on mast cells.
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.
When the weather starts to cool, a common question often arises: "Am I sick, or is it just allergies?" Here's what the experts say.
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells, a type of white blood cell, inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis or ...
Cold symptoms. Symptoms of the common cold can last up to two weeks, according to a monthly newsletter from the National Institutes of Health, part of the U.S. Department of Health and Human Services.
IRL anaphylaxis runs about a 1 in 5 chance of being biphasic and a 1 in 10 chance of needing an overnight hospital stay. ... Cold weather does not cause a “cold” or the flu. ... abdominal pain ...
The most common food allergy in the US population is a sensitivity to crustacea. [46] Although peanut allergies are notorious for their severity, peanut allergies are not the most common food allergy in adults or children. Severe or life-threatening reactions may be triggered by other allergens and are more common when combined with asthma.
Signs and symptoms of anaphylaxis. Food allergy symptoms occur within minutes to hours after exposure and may include: [11] Rash; Hives [11] Itching of mouth, lips, tongue, throat, eyes, skin, or other areas [11] Swelling of lips, tongue, eyelids, or the whole face [11] Difficulty swallowing [11] Runny or congested nose [11] Hoarse voice [11]