That's cholinergic urticaria. Cholinergic urticaria is a kind of urticaria. It is recommended to go to the dermatology department for treatment! If you treat yourself, you can take some antiallergic drugs, such as cetirizine 1 tablet/day+ranitidine 1 tablet/day +Vc tablets 2/day.
Cholinergic urticaria is a kind of rash that people often say. When you are hot, nervous, eating hot food or drink, or after exercise, your body temperature rises slightly. The heated blood flow stimulates the brain's thermoregulatory center, excites cholinergic nerves and releases acetylcholine. It is precisely because people are allergic to acetylcholine that we call the symptoms caused by allergies cholinergic urticaria.
Symptomatic characteristics of cholinergic urticaria
① There will be no rash, but you obviously feel acupuncture and itching.
② It mostly happens in youth, usually after encountering high temperature (hot drinks, hot baths), emotional excitement and exercise. When you stop exercising or calm down, the symptoms will subside. In severe cases, symptoms may take months or years to completely subside.
(3) Red wind masses of about 2 mm often appear on the skin of the trunk and proximal limbs (except armpits, palms and soles), which come and go quickly and leave no trace. Severe cases may be accompanied by digestive tract symptoms, such as abdominal pain and diarrhea.
It mostly happens in youth, after heat (hot drink, hot bath), emotional excitement and exercise.