Itchy blisters on the feet may be eczema, contact dermatitis or tinea pedis, need to give oral antihistamine drugs, local topical glucocorticoid cream or antifungal drug treatment. 1. Eczema: oral antihistamine drugs, such as diclofenac, levocetirizine, local topical glucocorticoid cream, such as mometasone furoate cream. Minimize the use of irritating alkaline detergent, do not use hot water. 2. Contact dermatitis: avoid contact with suspected sensitizers, oral chlorpheniramine maleate, ebastine and other antihistamines, local topical halometasone cream. 3. Tinea pedis: can be treated with topical antifungal drugs, such as bifonazole cream, terbinafine cream. If necessary, oral itraconazole, terbinafine and other drugs. Itchy blisters on the feet, it is recommended to consult a dermatologist. The drugs mentioned above need to be used under the guidance of a doctor.