Itchy hands and small blisters (i.e. “blisters”) may be the manifestation of herpes sweat, but also may be blisters scaly tinea versicolor or acute eczema on the hands and other symptoms of the disease, need to be specifically analyzed. 1. Sweat herpes: this disease mostly appears in the palm and plantar areas, often cyclic episodes of disease, often accompanied by palm and plantar hyperhidrosis, the cause of the disease is still unclear, may be related to fungal infection, psychiatric factors, drug reactions and other factors. 2. Blistering scaly ringworm: this is a superficial fungal infection caused by infectious skin diseases, mostly limited to one side, preferred in the palm and other parts of the body, often showing scattered or clustered, pinpoint-sized blisters, accompanied by itching, positive fungal examination. 3. Acute eczema: the etiology of this disease is not yet clear, is considered to be inside and outside the multi-factors resulting in allergic skin disease, usually the hands by hot water, soap and other physical or chemical stimulation can aggravate the disease, often manifested as erythema, papules, papules, accompanied by obvious tendency to ooze and itching. Patients with symptoms of hand blisters with itching may also have other diseases, it is recommended not to scratch the skin too much with your hands, to seek medical attention in time to clarify the diagnosis and standardized treatment.