Foot ulcers flowing yellow water is mostly caused by fungal infections, it is recommended to use topical antifungal drugs for treatment, such as terbinafine cream, ketoconazole cream and so on. If you don’t pay attention to foot hygiene, coupled with shoes that are not breathable, socks that don’t absorb sweat, and sweating more in the summer, it’s easy to harbor fungus in such a hot, humid, and unventilated environment. If the fungal infection is not treated in time, the toe seam will ulcerate and flow yellow water. To deal with this situation, it is recommended that the first wet compresses with isacridine solution, the local flow of yellow water after the improvement of the situation of topical antifungal drugs, such as topical terbinafine cream or ketoconazole cream, adhere to the continuous use of medication until the skin returns to normal. Foot ulcers flowing yellow water is recommended to consult a dermatologist, under the guidance of the doctor targeted treatment.