My kitten Molly, is eight months old. I had to take her to the vet two weeks ago because she had a sore and swollen lip. The vet told me it was an ulcer and gave Molly a Convenia injection. She told me it would be better to give her an injection then to try to give her pills for two weeks. I thought it was a great idea. The shot itself was $28.40, total of the vet bill was $111.76. I have an appointment to see the vet again this week since Molly's condition hasn't cleared up and is probably getting worst.