Topical antifungal creams are available for the treatment of fungal infections. They are usually applied once a day to the affected area, usually for four weeks for mild cases and up to six months in severe cases. It is important they are used correctly as otherwise they may not work or cause side effects. If you have hair loss due to fungal infection it is important to see your GP who may prescribe an oral anti-fungal medicine if the cream isn't working.