Sinus infections...

iVillage Member
Registered: 06-13-2005
Sinus infections...
Mon, 03-17-2014 - 8:19pm

Our cat was rescued by us when he was around a year old.  We noticed that he always was breathing loudly and snorting--the vet told us he had chronic allergies/nasal problems.  Last fall, he started sneezing almost constantly and giant yellow snot wads would come out of his nose.  He also stopped grooming himself, etc.  I took him to the vet and she gave me Clavamox to help clear up the infection.  It worked, but as soon as I stopped giving him the pills, the infection came back.  Then the vet prescribed azithromycin and that also cleared up whatever he had.  She also had me giving him L-lysine gel to help him fight off the virus he probably has.  She told me to give him 12 mg/day of Benadryl if he needed it and that really seems to help, but it seems like every time he goes off antibiotics, his sinus infections come back.  I can't afford to keep buying antibiotics from the vet and it doesn't seem like they are clearing it up anyway.  Has anyone else had a cat with this problem??  What did you try and did it work? Thanks!

Community Leader
Registered: 03-24-2000
Tue, 03-18-2014 - 10:23am

You have really been having a time clearing up that sinus infection you cat has.  Sometimes they can be really stubborn.  I wonder if your vet thinks he may have the herpes virus that is causing him problems?  That's usually why vets prescribe the l-lysine.  It never goes away and they just treat the symptoms when they flare up.  Another option is see if it would be good for the vet to take swabs of his discharge and send it out to see what antibiotic would work best to clear it up.  Sometimes they have to been on antibiotics a good month or longer to clear stubborn things up completely.  I have never had a cat with a sinus infection like that but had one with another infection and he was on antibiotics for a month after his infection finally cleared up and that worked.

Good luck and I hope something will work to help that sinus infection finally clear up.


Community Leader
Registered: 11-20-2001
Sat, 03-22-2014 - 3:17am

I was thinking the same thing leslie just said, have they checked for herpes.  I sure hope you find out what is going on.  I feel bad for you and the cat.  Best of luck!

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Avatar for tiggs_mom
Community Leader
Registered: 07-02-1999
Mon, 03-24-2014 - 9:02am

Sorry it took me so long to reply....

You may want to consider having the vet run a lab on the "snot". I had a foster kitten once that was the same way - just couldn't seem to shake it. We ran the test (it wasn't cheap but was worth it) and come to find out he had a resistant strain. We had to use a completely different drug - normally not considered for kittens but necessary in this case.

If it is yellow and thick, then it is still an infection. You can try doxycycline, but you have to use it for AT LEAST 21 days - sometimes up to 30 to really kick the butt of whatever you have. If money is an issue, suggest that first and then maybe consider another avenue.

The lysine should help also to boost his immune system.

Good luck!