Foot fungus with blisters that itch badly belongs to blistering tinea pedis, which is a fungal skin disease. It needs to be dealt with through daily care and medication. 1. Daily care: patients need to pay attention to foot hygiene, keep feet fresh and dry. Wear breathable shoes and socks and change them frequently, and don’t share shoes and socks with others. Be careful not to scratch the affected area, so as not to cause infection and aggravate the severity of the disease. 2. Medication: medication can be used under the guidance of a doctor, such as naftifine ketoconazole cream, bifonazole cream, terbinafine tablets and so on. If the local blisters broke with the erosion of the situation, you can follow the doctor’s instructions with the use of 3% boric acid liquid wet compress. The foot gas long blisters itchy advice as soon as possible to consult the doctor, actively cooperate with the treatment. The use of oral antifungal drugs as prescribed by the doctor, the period of treatment, need to regularly check the liver function.