How to Treat Cat Sinusitis

Respiratory Health 📅 August 6, 2026 👁 1312

📝 Summary

Cat sinusitis shows as discharge, sneezing, breathing trouble, low appetite, and fever. Treat bacterial cases with antibiotics (full course), viral with antivirals plus isolation, and severe cases with flushing or surgery. Warm, clean housing and good nutrition aid recovery.

1 Symptoms of Cat Sinusitis

Discharge and sneezing are the main signs, worsening as the disease progresses.

Breathing difficulty: rapid or noisy breathing, even labored breaths.

Reduced appetite from congestion, sometimes refusal to eat.

Head discomfort from poor oxygen, and fever with weakness when infection is severe.

2 Treatment Options

Antibiotics for bacterial sinusitis (e.g., amoxicillin-clavulanate, cephalosporins); finish the full course even if symptoms improve.

Antivirals such as interferon for viral causes, with isolation to prevent spread to other cats.

Nasal flushing to clear secretions in severe cases, done under veterinary guidance.

Surgery if pus accumulates and severely blocks breathing.

3 Daily Management

Keep the environment clean, warm, and dry; avoid cold, damp air.

Feed a high-quality, balanced diet to support immunity.

Watch symptoms (appetite, discharge) and return to the vet if they change; sinusitis needs professional diagnosis and treatment.

Want to learn more about pet health?

Explore our pet health channel for more science-based care guides

Read More Articles →