Grace is right,
the best way to treat ringworm is with shampoo and conditioner, fungatrol is pecifically for this ailment, youl have more sucess with this than basic shampoos
http://www.tackdirect.co.uk/prod_show.asp?id=101
Ringworm is horrible and uncomfortable however easy to get rid of,
these 2 articals will help, i dont agree with everything said in them but should help you understand your horses ailment
http://www.liphookequinehosp.co.uk/llringworm.htm http://www.farriers-original.co.uk/skincare.htm
Steven M