When the body sweats, there are red spots, considering that it is due to cholinergic urticaria, skin allergies, ringworm and other factors.
1. Cholinergic urticaria: when the patient’s body is heated, or after strenuous exercise, not only will cause the body temperature to rise and cause sweating, but also stimulate the thermoregulatory center of the brain, prompting cholinergic nerve impulses, thus releasing acetylcholine, which acts on the mast cells, triggering the symptom of erythema when the body sweats.
2. Skin allergy: mainly refers to when the skin is subjected to a variety of stimuli such as sweat, cosmetics, chemical agents, pollen, dust, etc., resulting in skin redness, swelling, itching and allergic dermatitis and other skin allergy symptoms.
3. Tinea corporis: when the patient’s body sweats, if not timely cleaning, it will lead to skin ringworm bacterial infection, thus stimulating the skin stratum corneum, so that the patient appeared on the body long red spot symptoms, the surface can be covered with scales.
There are many other causes of erythema on the body when sweating (such as eczema, sweating herpes, etc.), you need to go to the hospital in time for treatment, which can reduce the adverse effects of the disease.