Patients with ringworm can have intercourse, but they should do a good job of cleaning their skin before and after intercourse to try to avoid infecting each other. Ringworm is caused by a fungal infection and is mainly manifested as an erythematous, scaly rash in the groin area with clear borders that can be accompanied by itching. The main treatment is antifungal therapy, and you can apply topical creams with antifungal effects, such as terbinafine hydrochloride cream, luliconazole cream, or naftifine ketoconazole cream. If the patient has severe ringworm, he or she can take oral antifungal medications such as terbinafine hydrochloride tablets or itraconazole capsules. However, it is important to note that if oral antifungal medications are taken, liver function should be monitored regularly to avoid liver damage.