Ringworm is caused by a fungal infection and is contagious. Ringworm is also known as ringworm due to fungal infections. It most often occurs on exposed areas of the body such as the trunk and limbs, and sometimes on the face. If you have a fungal rash, it is important to use topical medication in a timely manner and not to scratch or rub the skin repeatedly, as this can lead to the spread of the rash. The commonly used topical drugs are mainly antifungal bifenazole, lirapamil, terbinafine, etc. Because the rash is small, the general topical drug control can be, without the need for systematic oral drug therapy.