Blisters are medically referred to as blisters. Itchy blisters on the plates of the feet may be caused by tinea pedis, eczema, sweat herpes and other reasons. 1. Tinea pedis: this disease is mainly caused by fungal infection of the skin of the feet, which can lead to the appearance of more small blisters on the affected skin, which may cause itchy blisters on the sole of the foot, accompanied by localized skin erosion, oozing, as well as obvious itching and other symptoms. 2. Eczema: when the foot skin eczema, can cause foot blisters itching, may also be accompanied by pimples, dark red erythema and other symptoms. It is mostly considered that it may be related to foot skin allergy. 3. Sweat herpes: the disease occurs in the palms of the hands, the foot plate, fingers and toes, can lead to the affected skin blisters, and most of them show a symmetrical distribution, which may cause the foot plate long blisters itchy, may also be accompanied by skin pain, itching and other symptoms. Itchy blisters on the sole of the foot may also be caused by other reasons, it is recommended to consult a doctor as soon as possible, after a clear diagnosis, the doctor’s guidance for treatment and conditioning.