Itchy blisters on the sole of the foot are mainly considered to be caused by eczema, herpes sweat, tinea pedis, etc. The specific analysis is as follows: 1. Eczema: with genetic, immune, endocrine, mental, psychological, dietary and other factors, is a chronic inflammatory itchy skin disease, in the acute phase of the disease will appear edema, blisters and other symptoms, may lead to itchy blisters on the sole of the feet. 2. Sweat herpes: due to local allergies, mental psychology, dermatophyte infections, external stimuli and other factors, mainly manifested as a symmetrical distribution of intensely itchy blisters on the hands or feet, the patient will be itchy blisters on the foot plate symptoms. 3. Tinea pedis: due to dermatophytes caused by superficial skin fungal infections of the feet, in which blister-type tinea pedis is mainly manifested in groups or scattered small blisters, often accompanied by itching, the patient will appear on the foot plate with small blisters very itchy symptoms. It is recommended that patients seek medical attention in a timely manner, in the regular hospital systematic examination to confirm the specific cause of the disease, for the cause of the active treatment, in order to avoid adverse consequences.