Luna, our rat terrier/patterdale terrier mix has a bald spot on her head. It has a few bumps and it white/greyish. She does not scratch it but it is really ugly. I can touch it but it doesn't seem to hurt her at all. She's had it for 6 months... we've taken her to the vets many times... she has creams that we apply to it but the only thing that seemed to work is when the vet gave us pills called "Prednisone" that made the hair grow back. But then after we stopped the prednisone it went bald again. We would bring her to the vet but each time it costs 45 dollars. We might put her back on prednisone but it makes her very weird acting... having to go the bathroom more, sometimes not eating.... just not herself. Has anyone had any problems like this or heard of any home treatments?