I took my hedgehog Buster into the vet over a month ago (presidents day) and got him on a 6 week treatment of Revolution. The vet couldn't find any mites on his from the scraping, but we decided to treat him just incase. He still has decent quill loss today, and still has very bald spots. I can see new quills growing in constantly, but it doesn't seem fast enough for his bald spots to go away. Are the quills falling out just damaged from the mites? Is it supposed to take this long before he can fully grow them back?