Is it the Iodine we used to put on our cuts as children?? Where do I get stuff like that these days?? Today I did some further research on ringworm, and I definitely think that's what it is. Probably one of my cats is infected, so during Christmas break I'm going to have them all tested & treated (3). Today I bought some Lamisil AT cream and put it on w/bandaids over it & it's already shown some marked improvement. Thanks for all your help; I'll keep you posted on how it's going. :)