I remember havin ring worm as a kid and got it the same time as my brother. Some ppl usually think 'YUKK' when you tell them but ring worm is easy to catch amongst unhygenic kids. However, gettin rid of it was pretty easy. Both myself and my brother had some type of drink that kills the ring worm and their eggs in the gut and rectum. Im surprised ur doc didnt say this. N e way, I forgot what its called now but im sure the pharmacist should know.