Cat Has Sneeze Attacks and Sprays Mucous

Ceaseless sneezing and sniffling in a cat could mean chronic sinusitis. Can (and should) it be cured?

By Arnold Plotnick, DVM

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Pixie Bob Cat Sneezing
Chronic cat conditions, like constant sneezing, could become so routine to a cat that he thinks it's normal.
Q: My 12-year-old cat, Buddy, has a constantly stuffed-up and runny nose. He sneezes regularly, sometimes having what I call sneeze attacks, where he sneezes repeatedly over and over and spraying mucous out of his nose. The mucous is sometimes orange, sometimes clear. My cat has been given Lysine chews, which he ate for a while and now won't touch. He has had antibiotics, which did nothing. His previous owner had him for the last 9 years and adopted him out of a shelter. She said that no vet she'd ever taken Buddy to could figure out his sinus problem. My vet didn't know why he would have this condition either.

He is perfectly healthy in every other respect, but the constant sniffling, runny nose and sneezing situation can't be pleasant for him.

A: It sounds like your cat has chronic sinusitis. This usually results from a severe prior respiratory infection. Many kittens get a viral respiratory infection from shelters, with the herpesvirus being the most likely culprit. The kitten recovers, but in severe cases the infection results in damage to the delicate turbinate bones in the nasal cavity. This compromises the ability of the respiratory immune system to fight off infection, and cats end up with chronic sinusitis

Read more about cat herpesvirus >>

No consistently effective treatment exists for this. During flare-ups, antibiotics may help reduce some of the clinical signs, but the cat will always have a low level of nasal discharge and congestion. Very severe flare-ups may respond to anti-inflammatory drugs like corticosteroids. Lysine is an amino acid that is often effective for recurrent flare-ups of herpesvirus infection, but this is not quite what is going on with your cat. Cats with recurrent herpesvirus flare-ups will go through periods where they are normal, and then a period where they have signs of an upper respiratory tract infection. 

Get tips on giving your cat medication here >>

Your cat doesn’t go through "normal” periods. Your cat always has a low level of snuffles and congestion. Lysine is less likely to help in these cases. Famciclovir is an anti-viral drug that might be worth a try. It works best for cases of recurrent herpesvirus infections, but I have had a few cases of chronic sinusitis that did respond to a month-long course of this drug. Be forewarned, however, that this drug is expensive. I wouldn’t worry about your cat too much, though. This constant congestion is the only life he’s ever known, so he probably doesn’t even realize that this is abnormal. To him, this is the way life is supposed to be. Chronic sinusitis has no effect on lifespan, so despite the sneezing and snuffling, Buddy will probably live a long, happy life. 

See more reasons for cat sneezing here >>

Read more articles by Arnold Plotnick, DVM, here>>

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Reader Comments

Jay    International

9/19/2016 1:01:33 AM

My cat is not so severe as some of the stories here but he goes through times where he can get very snotty. The vets have done tests for bacteria in his boogers but they came back negative. Although the tests were negative antibiotics(doxycillin) has seemed to help a fair bit for him which i don't really understand. One thing i noticed is that the symptoms seem to get worse when i treat him for fleas. I have been using comfortis oral flea treatment. Not sure if there is any link between the two but i just thought id share what iv noticed. I hope everyones kitties are feeling better :D

Suzanne    Virginia Beach, VA

11/17/2015 2:29:41 PM

I want to share my success story with my cat: my cat Axel suffered with sneezing, and copious amounts of snot and slime for more than FIVE years. The only thing that helped slightly was Lysine. Finally, the fifth vet I took him to told me this not uncommon condition was a virus and put him on a 14 day course of Famcyclovir which is an antiviral. Additionally, he had developed a secondary bacterial infection and treated him with Zithromax. This cat is now COMPLETELY clear. He must stay on the lysine daily which keeps the virus from replicating and I have a refill for the Famcyclovir in case of another flare up. So ask your vet for an antiviral and give Lysine every day and your cat can stop suffering!

Vance    Parma, OH

5/4/2015 12:09:23 PM

Would this be contagious to our dog or ourselves?

Pat    Homer, AK

4/30/2015 3:30:49 PM

I have a cat that has the same problem. Gets stuffed up and sneezes globs on the walls and everywhere. My vet said I could try child's Benedryl but he hated the taste, 2nd try was 1/2 of an adult Benedryl. It helps him for about 3 days. I won't give him more than 1/2 a pill a week. My cat is a Maine Coon and is 16lbs so dose may be too much for smaller cats.

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