Can I give my cat human allergy medicine?

No. Many human decongestants and antihistamines (like those containing pseudoephedrine) are toxic to cats. Only use medications prescribed by your vet.

Can cats catch a cold from humans?

No. The viruses that cause human colds are different from those that cause feline URIs. You cannot give your cat your cold, and they cannot give theirs to you.

Why is my cat sneezing blood?

Bloody discharge (epistaxis) can be caused by severe infections, nasal polyps, foreign bodies, or even high blood pressure. This requires an immediate vet visit.

Does "L-Lysine" help with cat sneezing?

L-Lysine is an amino acid often used to manage feline herpesvirus. While results vary, many vets recommend it to support the immune system.

Why is My Cat Sneezing So Much? Causes, Symptoms, and When to See a Vet

A cat sneezing a lot is most commonly caused by Upper Respiratory Infections (URIs), such as feline herpesvirus or calicivirus. Other frequent triggers include environmental irritants (dusty litter, perfumes), allergies, or dental disease affecting the nasal cavity. While an occasional sneeze is normal, you should visit a vet if the sneezing is persistent or accompanied by: Yellow or green nasal discharge (signs of bacterial infection). Loss of appetite (cats won't eat if they can't smell). Squinting or discharge from the eyes. Lethargy or labored breathing.

Cat Sneezing a Lot? 2026 Guide to Causes & H...

Home Shop Contests Blog Community

Cat Sneezing a Lot? 2026 Guide to Causes & H... | Mr. DOGFACE

Featured Answer

Cats sneeze a lot primarily due to upper respiratory infections (URIs) like feline herpesvirus, environmental irritants like scented candles or dusty litter, or dental issues. While an occasional sneeze is normal, frequent sneezing accompanied by colored nasal discharge, squinty eyes, or a loss of appetite requires a veterinary examination to rule out bacterial infections or foreign objects in the nasal passage.

The Occasional Sneeze vs. Chronic Sneezing

In the feline world, a sneeze is a protective reflex designed to clear the nasal passages. If your cat sneezes once or twice a day, it’s likely just dust or a strong scent. However, if the sneezing is paroxysmal (occurring in bursts) or accompanied by other symptoms, it’s usually one of the following 2026 health concerns.

A close-up of a cat sneezing, highlighting the nasal area.

Top 5 Reasons Cats Sneeze

1. Upper Respiratory Infections (URI)

The most common cause of frequent sneezing is a viral infection, often referred to as "cat flu."

Feline Herpesvirus: Causes chronic, recurring sneezing and eye congestion.
Feline Calicivirus: Often leads to sneezing accompanied by mouth sores or ulcers.

2. Environmental Irritants & Allergies

Cats have highly sensitive nasal passages. In 2026, we see an increase in "indoor allergies" caused by:

Strong Fragrances: Scented candles, diffusers, and harsh cleaning products.
Dusty Litter: Clay-based litters that kick up fine dust during digging.
Pollen & Mold: Even indoor cats are exposed via open windows or human clothing.

3. Foreign Bodies

If your cat is sneezing frantically and pawing at their face, they may have a "foreign body" (like a blade of grass or a seed) stuck in their nasal turbinates.

4. Dental Disease

Because the roots of a cat’s upper teeth sit directly below the nasal cavity, an infected tooth or abscess can cause inflammation that leads to chronic sneezing and nasal discharge.

Key Takeaways

Smell is Vital: If a cat's nose is blocked, they may stop eating. Ensure they can smell their food to keep them nourished.
Vaccination Works: Keeping your cat up to date on FVRCP vaccines significantly reduces the severity of URI-related sneezing.
Irritant-Free Zone: Minimize the use of heavy fragrances in multi-cat households.