Itchy blisters on the feet can be caused by fungal diseases, allergic skin diseases, etc. The specific medications are as follows: 1. Fungal diseases: Commonly seen in blister-type tinea pedis, mainly caused by fungi, erythema, papules, blisters, accompanied by vesicles, oozing, etc., on unilateral feet, and even itching, and in some cases, a sense of odor on the feet. Therefore, in the treatment can be bifenazole cream and compound clotrimazole cream alternately used topically. 2, allergic skin diseases: such as eczema, mainly in the bilateral foot erythema, papules, rice-grain blisters, accompanied by itching. In the treatment can be applied topical stove glycolic lotion, if the blisters are very large, the size of soybean grains, you can be disinfected with iodophor and then use a sterile syringe to draw bubble treatment, mixed with topical comfrey oil and recombinant human epidermal growth factor gel. During the treatment period, it is necessary to abstain from spicy and irritating foods, abstain from alcohol, wear cotton socks, and keep the shoes dry, clean and hygienic. Therefore, for patients with foot blisters accompanied by itching, it is recommended to go to a regular hospital under the guidance of a dermatologist for topical drug treatment.