When I've had ringworm I've found that the antifungal cream Lotrimin Cream or the Lamisil antifungal cream works for getting rid of ringworm.
Also besides the Lotrimin cream some other good things for ringworm are the Cruex spray powder, Mycelex, Pedesil (clotrimazole).
You can also get rid of ringworm naturally using some apple cider vinegar on the ringworm or by making a garlic paste and applying the garlic paste to the ringworm.
Most cases of ringworm can be treated at home however you can sometimes speed up the time it takes to get rid of ringworm by seeing a doctor for some higher strength prescription ringworm cream.