The ear powder doesn't make it less painful, it just allows you to grip the hair and pluck it out. Lots of dogs don't like it.. I've never had a standard poodle bite me for it, though I had to pretty much wrestle with one since she was pretty determined to get away.
The best you can do with the mats behind her ears is to either slicker them to see if they'll go away, or trim them out. Behind the ears, on the ears, and on the tail are some of the most common places I'll find mats in the dogs, as well as legs.
The best you can do with the mats behind her ears is to either slicker them to see if they'll go away, or trim them out. Behind the ears, on the ears, and on the tail are some of the most common places I'll find mats in the dogs, as well as legs.