Disclosed is an antifungal agent for external use, which is characterized by containing a compound represented by the general formula (1), 50 to 95 mass% of an alcohol such as ethanol, 0.1 to 35 mass% of water or the like, and 0.01 to 5 mass% of a cellulose thickening agent. X is a halogen or H. X = a halogen or H General formula (1)