Hello,
Oh that is so sad. It is definitely yellow fungus, no doubt about it. He needs the treatment suggested. Nizoral is an oral antifungal medication that is effective. The betadine baths along with tea tree oil & witch hazel following, & then using lamisil or silvadene is highly effective but as already said it does take a long time to get rid of it.
Poor thing. I would love to take him in but I am in central florida. Is there anyone in your immediate area to help? Where in Georgia are you?
Tracie