C Win Lotion is an antifungal medication. It is used in the treatment of fungal skin and nail infections. It works by stopping the growth of fungi, thus treating the infection. C Win Lotion is for external use only. You should use it in the dose and duration as directed by your doctor. The amount you need, and how long you take it will depend on what you are being treated for. You should normally wash and dry the affected area before applying a thin layer of the medicine. You should avoid getting in contact with your mouth, eyes, and nose. In case of accidental contact, wash it off with plenty of water. Keep using it regularly to get the most benefit. The most common side effects include itching, burning, or stinging sensation at the site of application. They are not usually serious and often disappear with time. If they bother you or do not go away, let your doctor know.