We picked Rosie up from the kennel yesterday. When we inspected her a little closer, we saw that the left and right side of her jowls were a bit pinkish-red and slightly swollen, like they were irritated. We figured it was from chewing her rawhide a bit too violently like she sometimes does, but her rawhide was untouched. What could be causing this? Allergies? She did eat Canidae for one meal while she was at the kennel since they ran out of her usual Royal Canin Urinary SO13. Could she be allergic to this? If it's not allergies, could it be something else?