Absolutely, OTC is always best, and cheaper. Let us know her progress in about a weeks time. It takes time for favus to completely go away with treatment.Thanks for this. We have had these girls since they were chicks, and they are about 18 months, but this is my first go round and we are always learning! To my eyes, it does have a fungal look. Would an OTC Monistat-like product work for this?