There are home treatments that can help with this health condition.

Ringworm is generally a brownish to reddish raised area of skin with the center looking fairly normal 
in nature forming a round ring pattern. To effectively make use vinegar, clean 
up the affected area first, pour distilled vinegar in a clean bowl, dip a clean 
towel in the bowl of distilled vinegar and rub on the infected areas of the skin, leave to dry up.