The most common type is tinea pedis, but there is also the possibility of tinea cruris, eczema, sweat blisters, contact dermatitis, and papular urticaria. 1. Blisters on the feet, the most common type of tinea pedis, occur on the lateral edge of the foot with more pronounced itching, are more common in adults and are also likely to occur in children, with tense blister walls that do not break easily. It is recommended to use topical terbinafine spray twice a day for 2-4 weeks. 2, sweat herpes is the second most common disease, belongs to a kind of eczema, may be related to sweaty feet, it is recommended to use topical stove glycolic lotion, 2-3 times a day. Both of the above are related to shoes that are not breathable and feet that sweat a lot. You should pay attention to personal hygiene, pay attention to drying the toe seams after washing your feet, and wear breathable shoes and socks. Life. 3, papular urticaria is mostly one or several emanations of blisters, in addition to blisters can also have papules, the reason is the inflammatory reaction caused by insect bites, when intense top can have small blisters itchy performance. 4, contact dermatitis more than a history of external cream paste, clear boundaries, itching intense. The two above-mentioned topical Youzol cream can. 5, hand, foot and mouth prevalent in children, can be manifested as small blisters on the hands and feet, surrounded by red spots, mostly without itching, pain, can be accompanied by chills, poor, fever and other symptoms of viral infection. The causes of blisters on the feet are varied, and can be handled on their own according to the above preliminary judgment, discomfort to seek medical advice