Itchy skin after sweating is mostly considered to be caused by skin sensitization, cholinergic urticaria or contact dermatitis and other diseases.
1. Skin sensitivity: human sweat contains urea, salt and other components, for people with sensitive skin, under the stimulation of the above components, can cause skin itching.
2. Cholinergic urticaria: when the human body through sports, hot baths and other behaviors, the body temperature can be increased by about 1 ℃, when the body to increase the heat of the blood flow, stimulate the thermoregulatory center of the brain, which can cause parasympathetic cholinergic nerve impulses, the release of acetylcholine in the skin, the above symptoms can occur.
3. Contact dermatitis: dust mites, poplar floss, pollen and other substances in the air, easy to cause allergic reactions, especially in the skin after sweating, sweat can be such allergens from the contact with the dissolution of the material, and adhesion to the skin, at this time there can be localized itching, redness and swelling and other allergic reactions.
Itchy skin after sweating, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.