I'm curious as my vet automatically assumed that my cats upper front lips with red swollen bumpiness over top teeth was just an allergic reaction. Its not any worse since 2 weeks of solely Z/D but his bottom front lip now is also puffy and red too. Is stomatitis just in the back of the mouth and around molars? Pondering how they know the difference from just gingivitis, stomatitis and allergic reactions with a 20 sec look if anyone has been down this road with their cats.