Cholinergic urticaria is a rash. When fever, nervousness, eating hot food or drink, or exercising, the body temperature rises slightly, and blood flow stimulates the brain through the thermoregulatory center, exciting the release of cholinergic nerves and acetylcholine. This is caused by allergic symptoms of acetylcholine, which we call cholinergic urticaria.

Symptomatic characteristics of cholinergic urticaria

I'm not in a hurry, but I obviously feel acupuncture and itching.

② It occurs in adolescence, usually when there is heat (hot water, hot bath), emotional excitement and exercise occur. When you stop exercising or calm down, the symptoms will subside. In severe cases, you may need to change the symptoms for several months or years, and then completely disappear.

③ The skin around the trunk and limbs (except armpits, palms and soles) often has a red wind mass of about 2 mm. This wind mass came and went quickly, leaving no trace. It may be accompanied by severe gastrointestinal symptoms, such as abdominal pain and diarrhea.

It occurs in adolescence, and after encountering heat (hot drinks, hot baths), emotional excitement and exercise appear. The rash is characterized by a small wind mass of 1 to 3 mm, with redness around it, mostly in the trunk and proximal limbs, fatigue and itching. Some patients have gastrointestinal symptoms, such as abdominal pain and diarrhea.