Every summer when the weather is hot, there will be blisters on your hands, with long fingers and long palms. It's not rash. What is this?

Consider the possibility of herpes simplex. Herpes zoster is a secondary vesicular skin disease, which accumulates and occurs on the flexed skin of palms and toes, usually accompanied by hyperhidrosis of hands and feet. The etiology and pathogenesis of the disease are not clear, and it may be an eczema-like hypersensitivity. Generally speaking, skin lesions are round blisters the size of rice grains from the tip of the needle to the surface. There is no blush around, but there is clear slurry inside, which will become turbid. After drying, it will become collar-like desquamation, and there will be different degrees of itching and burning. The course of disease is chronic, and it is easy to recur in spring and autumn. Treatment should avoid mental stress and mood swings and seek to remove contact stimuli. Loratadine tablets and other antihistamines can be used in the early stage of the disease, and local drugs can dry, diminish inflammation and relieve itching, such as calamine lotion, zinc oxide lotion, Hasidic solution, etc. Later desquamation can be mainly applied with 10% urea cream.