Clear blisters on the feet may be caused by friction, blister-type athlete’s foot or blister-type eczema. It is recommended that the patient be treated through general treatment, medication, or surgery after the specific cause is clarified under the guidance of the doctor. 1. Friction: Clear blisters may appear on the feet if there is excessive friction between the shoes and socks worn by the patient and the feet. Generally, the blisters can be absorbed by wearing loose shoes and socks, avoiding friction, and taking good care of the blisters; if the blisters are too big, surgical incision and drainage can also be taken as treatment: if the blisters are ruptured and bacterial infection occurs, antibiotic creams such as mupirocin can be used externally. 2. Blistering tinea pedis: blistering tinea pedis is caused by fungal infections, and can be treated with topical antifungal medications, such as terbinafine ointment, naftifine ketoconazole cream, and so on. 3. Blistering eczema: blistering eczema can be topical glucocorticoid drugs, such as hydrocortisone butyrate ointment, mometasone furoate ointment. For transparent blisters on the feet may also be other reasons, please go to the regular hospital for examination in a timely manner, under the guidance of a professional doctor for standardized treatment.