My chichilla is a rescue from an animal shelter. He is 4 to 5 years old and used to chew his fur quite a bit until I changed his diet from a harvest blend type food, to mainly Mazuri pellets and timothy hay. However, it now seems that he's developed several hair mats on his right haunch. He hates to be picked up and vibrates in fear when held. He will let me scratch all around his head, ears and chest, and down the middle of his back. I am wondering how I will be able to remove these mats without totally stressing him out. Also, I am somewhat nervous about using scissors to cut them off. Any suggestions would be appreciated.