Analysis: Tinea versicolor, commonly known as tinea versicolor, is caused by a fungal infection. Suffering from ringworm will often feel itchy, hand skin will also appear pimples, blisters, erythema and flaking. It starts out as small patches, and then the damage gradually expands and becomes well defined. Over time, the skin on the hands will become rough, dry and thickened, and can also be accompanied by cracking and bleeding. But if there are symptoms such as itchy hands and peeling skin, can we say that it must be ringworm? Of course not, there are many skin diseases can see itchy hands, peeling skin symptoms, such as eczema, sweating herpes, contact dermatitis, exfoliative keratolysis, etc., should be carefully identified, otherwise it will delay the diagnosis and treatment. Eczema occurs mostly on the palms of the hands and is symmetrical in both hands. The lesions are polymorphic, papules, blisters, vesicles, ooze and crusts can be seen at the same time, often with two to three of them as the main ones. The change of the disease is closely related to the seasons, and there is also some correlation with diet and rest. Damage can be exacerbated if the palms of the hands come into contact with irritants such as water and soap. Fungal tests are negative. Sweat herpes occurs with obvious seasonality, mostly in spring and summer, and heals in winter, mainly in young people. The lesions are also symmetrically distributed, mainly blisters, in batches of episodes, can be seen on the palmar surface of the hand, the side of the finger and the end of the finger, the blisters dry and peel off, revealing new skin, often accompanied by varying degrees of itchiness and burning sensation. The occurrence of this disease is related to poor sweating or allergic reactions, and the fungal examination of the damage is negative. Contact dermatitis is caused by contact with allergy-causing substances and is an allergic reaction of the skin with a clear history of contact. Skin lesions occur in the contact area, clear boundaries, more consistent pattern, mostly erythema, edema, severe cases can be seen blisters, blisters and so on. After removing the contact material, the lesions can gradually subside and heal. Local fungal examination is negative. Exfoliative keratolysis is a superficial exfoliative dermatosis of the palmoplantar area, often accompanied by localized sweating, easy to flare up during the warm and hot seasons. The lesions mainly involve the palms and feet, and are bilaterally symmetrical, characterized by small white dots of exfoliated keratin and easily exfoliated paper-thin scales, with normal skin underneath, and unremarkable itching. Fungal examination is negative.