Canker sore like lesion at my cat's lips

[TabbyGarfield]

My 1 year old cat develops canker sore like lesion at the lips.  I have taken him to the vet 3 times.  The vet said he has allergy.  He had received 3 cortisone shots with no improvement.  Has anybody had similar problem with his/her cat?  Any suggestions how should I treat this condition.  By the way, my cat has no symptoms.  He seems to be playful and has good appetite.  Any help would be appreciated.  

[fictionkitty]

Maybe this person's circumstances changed after she already had the cat. Unavoidable things sometimes happen. It would be nice if we could support one another rather than judging and tearing down one another.

[jb754]

That is just rude. People take pets into their homes and give them love and all that they can. Sometimes people run into financial difficulties. How dare you judge someone for trying to seek help. You are just ignorant.

[nikki334]

This is very common with antifreeze poisoning in cats and seein gas it was a barn cat and not on close watch that is most likely the case.

[Kittyluve]

Do you use flea treatment? My cat has the same problem but it seems it is only when I use Frontline and the girl who rescued him said he had a reaction to flea treatments. I am thinking it is from that, I use a little hydrogen peroxide and it goes away.

[mochashine]

I would also like to say that these ulcers are very hard to find a reason for and treat you have to know that a change in diet must be done very consistently and results will  not be obvious before 6 weeks. This is the amount of time my vet told me it takes for the allergen to leave the body. My cat does drink water but dry food should not be substituted for the reasons about but the culprit is ash which is also in canned food. Canned food can be almost all water so there isn't much nutrition there.

[mochashine]

Before you go broke on those exspensive foods try fish oil on their regular food. I had to put it on my cats dry food in a way that is was spread out and almost soaked in. He wouldn't take it any other way. I use the same fish oil I take and cut open the capsule to release the oil onto the food. Most cats like it any way but my kitty seems to have some issues with textures.