Have Cat Questions? Ask a Cat Vet Online.
Hello, this is Dr. Jess. It is quite possible that this baby racoon has something like mange or that it has a bad case of fleas. Unfortunately, there isn't something to safely put in his food to treat this issue. Without examining him we do not know what the cause of the hair loss is, and without being able to weigh him, we don't know how much of a given medication he would need, and since he is coming to eat with his family, there isn't really a way to feed a specified amount of any medication to him alone.
If you can isolate her and estimate her age accurately, it may go away with the ivermectin but may require several treatments. I unfortunately don't have a dose for ivermectin in racoons and can't seem to find one in my formulary, I will opt out of your question and see if someone else may have that info for you.