I read i you have ringworm you can smuther it with nailpolish and i tried it and seems to be lessening but i still don't know if it's actually ringwor?

Skin Scrapings: Skin scrapings for a KOH prep can help with diagnosis of ringworm. However, most diagnoses are made by examining the rash alone. Suitable antifungal treatments are available over the counter; ask your pharmacist for a recommendation. These treatments will not work in areas with dense hair, like the scalp, brow, or armpits - those infections require oral antifungals like griseofulvin.