my kitty phoebe who is only 7 months old has a rodent ulcer which is linked to something called eisinophillic granuloma. the first time we took her to the vet her chin lower lip area was puffy and just blamed on allergys, she got a shot and it went away. this time it came back and worse on her upper lip which the doc said was an ulcer. shes really young to be getting this and if gone untreated can lead to cancer. Im really worried. The vet gave us instructions to rid our house of all plastics that she may chew on and the litter with the deodorizing crystals. If it doesnt come back than plastics are the cause, if her ulcers do than we have to do another search of what it may be. Does anyone have any experience with this. Poor baby, shes only 7 months and has 2 page both sides chart at the vet already.