His gums are very red and inflamed, especially in front.. The pic doesn't do it justice. He hasn't had any diet changes lately (we changed his food about 2 weeks ago) and TO MY KNOWLEDGE he didn't get into anything. 11 month male.
He does lick the grass where other dogs pee and being that it is summer, I'm worried he may have lapped up some fertilizer or pesticide. He has rubbed his face with his front paw a few times in the last hour or so like his mouth itches and tried to scratch with his back but his back legs he can't get to his mouth becaue of his hip dysplasia.
Can I, or should I treat the inflammation with Benadryl or Atarax?