Tinea cruris is a contagious disease caused by the attachment of fungi to the surface of the skin, and it tends to recur. After treatment with conventional antifungal creams, the areas around the upper thighs or buttocks may show hyperpigmentation, mostly appearing black or yellowish-brown. These pigments mostly fade away or lighten over time on their own, but some people may not be able to completely remove them and there are no particularly effective medications for this. It is advisable to wash the affected areas frequently with warm water and apply ordinary moisturizing lotion. Gradually, the pigmentation will fade. Eating foods rich in vitamin C, such as strawberries, oranges, and tomatoes, may also help accelerate the fading of the pigments.