I'm currently using anti fungal cream for a ringworm on my arm. do i have to cover it with a bandaid? would it spread to other people if not bandaged?

Not usually: It is actually better to leave it uncovered, or loosely covered with your normal clothing. To prevent it from spreading, wash your towels, sheets, and clothes regularly. If you’re doing an activity in which the affected area might come in contact with other people or surfaces – such as going to the gym – then it’s a good idea to cover the area temporarily.

Ring Worm: Ringworm is a common fungal skin infection otherwise known as tinea. Ringworm most commonly affects the skin on the body (tinea corporis), the scalp (tinea capitis), the feet (tinea pedis, or athlete's foot), or the groin (tinea cruris, or jock itch). http://www.webmd.com/skin-problems-and-treatments/ss/slideshow-ringworm