Wrap her up in a towel snugly, and little bit by little bit, comb her out and unravel her from the towel, starting with her head, then neck, then shoulders .... Use a little spray in conditioner to help with mats. She just doesn't want to be groomed, lots of them hate baths, blow drying etc. She will be ok, get her combed out and dry, then give her a treat and she she will love you again