Itchy back after sweating is mostly considered to be caused by physiological factors and pathological factors (commonly found in eczema, urticaria, prickly heat and other diseases).
1. Physiological factors: general sweating, if you do not wash the sweat in time, the sweat is easy to stimulate the skin, resulting in itching symptoms, is a normal physiological phenomenon, usually after scrubbing, the symptoms will be relieved.
2. Pathological factors
(1) eczema: the cause of this disease is unknown, may be related to contact with synthetic fibers and other chemical products, hot and humid environment, hot and cold stimulation, endocrine disorders, adverse neuropsychiatric factors, etc., manifested as erythema, pimples, maculopapular, itching and other symptoms, after sweating, itching symptoms aggravated.
(2) Urticaria:This disease is mainly caused by eating allergic substances, such as animal protein, mango, peanuts, etc., inhalation of pollen, dust, animal fur, or penicillin, sulfonamides and other drugs, or factors such as fatigue, mental stress. Manifested as wind, erythema, itching and other symptoms, sweating, irritation aggravation, itching symptoms.
(3) prickly heat:This disease is mainly caused by increased sweat secretion in a hot and humid environment, poor sweat discharge, sweat duct obstruction, manifested as small papules, blisters or pustules, itching, stinging and other symptoms, itching aggravated by sweating.
It is recommended that patients according to their own situation, such as suspected disease, timely to the regular hospital dermatology consultation, a clear diagnosis, targeted treatment, to avoid delaying the condition.