The etiology of sweating herpes in winter is not completely clear, it is thought that it may be related to local allergies, fungal infections, sweating maladies, psychosomatic factors and so on. ⒈ physiological factors: If the mental stress is too high, long-term anxiety, nervousness and other psycho-psychological factors can appear in winter herpes sweat, or sudden seasonal changes can also induce herpes sweat. Pelvic pathologic factors: (1) local allergy: allergy to heavy metals such as nickel, cobalt or long-term exposure at work, this condition can also appear herpes sweat, in addition, it may also be related to allergic diseases, such as allergic rhinitis. (2) Fungal infection: roughly 10% of herpes sweat is one of the manifestations of ringworm rash, and some patients with herpes sweat on hands are often due to tinea pedis. (3) sweating malady: if the patient sweats more in winter, because the sweat ducts are not smooth, resulting in excessive sweating and retention in the sweat ducts, this situation can also form sweating herpes. When herpes sweat appears in winter, you should go to the hospital in time, after clarifying the cause of the disease and under the guidance of the doctor for treatment to avoid adverse effects.