The weather suddenly turned cold and one's fingers itched.

First: beriberi is a kind of beriberi caused by fungal infection. Patients with tinea manuum are generally accompanied by beriberi, which is contagious. The main symptom is blistering and peeling. It can occur all year round, accompanied by itching, chapped after a long time, and bleeding after scratching. The treatment of this disease is mainly antifungal, anti-inflammatory and antipruritic. You can choose tinea kangning to wash first.

Second: Herpes zoster, mainly caused by the blockage of sweat gland ducts, is mainly manifested as blisters and desquamation, with seasonal onset, usually occurring in spring and summer, and cured into normal skin in autumn and winter. The treatment is mainly to dredge sweat gland ducts, relieve itching, sterilize and repair damaged cells. Han Pikang is the first choice. You can compare it. It belongs to that kind of symptomatic treatment.