Whenever you sweat, your whole body stings and itches, which can be considered to be related to sweat irritation or the emergence of urticaria such as cholinergic urticaria and other reasons. 1. Sweat irritation: After sweating, the skin is not cleaned or clothes are changed in time. Due to the stimulating effect of sweat, the skin becomes prickly and itchy. It is recommended to clean and change clothes in time. 2. Urticaria: some physical factors such as sweat, cold, friction, etc. can induce the occurrence of urticaria, the body releases inflammatory mediators, such as cholinergic urticaria. Can be in motion, heat, the release of acetylcholine role in mast cells, the release of histamine, body parts conscious itching, tingling sensation or burning sensation, the skin can be formed around the redness of the round papules of the wind. After sweating, there is a generalized tingling or rash and other manifestations, it is recommended to go to the hospital. Timely removal of the cause of the disease, and anti-allergy and symptomatic treatment.