We (husband and I) realized he got into something and there was a patch of matted fur on his face around the jaw. We tried cleaning it (with dog shampoo, and then soap and water), brushing it, and couldn't seem to fix it for him. Then it started itching like crazy and he kept scratching at it despite us trying to stop him until it finally started bleeding as well. And now we don't know what to do because clearly it's bothering him and probably hurts. I gently brushed my hand across that area to see if at least most of the matting was gone after the cleaning and brushing, and realized there was blood all over my hand from his scratching the area. Also, his fur seems to be shedding a lot (I'm guessing from the wounds he's given himself...well, I hope that's the case, anyway). And he also got mad and started growling and won't let me anywhere near that area now, even to just clean the blood off with some water. We're going to call the vet as soon as they open to get their advice, but I'm worried and feel so bad for him and don't know what to do.