text: <unk>  is subcategory of physical urticaria (aka hives) that is a skin rash brought on by a hypersensitive reaction to body heat. Symptoms follow any stimulus to sweat such as exercise (sometimes called exercise-induced urticaria), heat from the sun (which could also indicate solar urticaria), saunas, hot showers (reaction to water can also indicate aquagenous urticaria), or even stress due to blushing or anger. Some people only have symptoms during the winter months where their body temperature rises when it is unacclimatized to heat.
option_0: Cholinergic urticaria
option_1: Dermatographic urticaria
option_2: Chronic cold urticaria
option_3: Chronic idiopathic urticaria
option_4: Anaphylactoid reaction
option_5: Anaphylaxis
option_6: Drug eruption
option_7: Contact dermatitis