Itchy feet blisters (“blisters”), can be considered herpes sweat, tinea pedis, contact dermatitis and can be treated with medication. 1. Sweat herpes: the cause is unknown, may be related to genetics, immunity and other factors, can blisters on the feet, and there will be intense itching. It is often treated with glucocorticoid creams such as mometasone furoate cream and antihistamine drugs such as oral loratadine. 2. Tinea pedis: This disease is often caused by fungal infections, can appear foot blisters, and there is intense itching. Bifonazole or terbinafine can be used externally as antifungal ointment, and if necessary, oral itraconazole and other antifungal drugs should be taken as prescribed by the doctor. 3. Contact dermatitis: especially in the summer when wearing sandals, skin exposed outside, skin contact with allergens, easy to lead to contact dermatitis, will cause blisters with itching symptoms. Glucocorticoid creams such as tretinoin can be used externally, and antihistamines such as cetirizine and loratadine can be taken orally. Itchy feet blisters cause more reasons, it is recommended that patients timely to professional skin hospitals, not blindly use their own medication. In addition, after the foot blisters, pay attention to keep the foot skin dry, clean, avoid secondary bacterial infection.