Dog Nose Infection: Causes, Symptoms, and Treatment

A dog’s nose is one of its most important features. Normally, it should be moist, cool, and smooth. If a dog’s nose becomes swollen, crusty, discolored, or starts discharging pus, it may be a sign of a nasal infection.

Causes of Dog Nose Infections

Several conditions can lead to nasal infections in dogs:

Bacterial infections – Often caused by wounds, scratches, or as a secondary issue from another illness.
Fungal infections – Such as aspergillosis, which affects the nasal passages.
Foreign objects – Grass seeds, foxtails, or small debris lodged in the nose.
Dental disease – Infections in the upper teeth can spread into nasal passages.
Parasites – Nasal mites can irritate the nose and cause infection.
Injuries or trauma – Cuts, scrapes, or bites around the nose that become infected.

Symptoms to Watch For

Thick nasal discharge (yellow, green, or bloody)
Crusting or sores on or around the nose
Swelling of the nose or face
Sneezing, coughing, or noisy breathing
Loss of appetite or fatigue
Pawing at the face or nose due to irritation

Home Care (Mild Support Only)

While you cannot fully treat a nasal infection at home, you can provide supportive care until a veterinarian can examine your dog:

Keep the nose clean – Wipe discharge gently with a damp cotton pad or soft cloth.
Provide humidity – Use a humidifier or bring your dog into a steamy bathroom for 5–10 minutes to ease congestion.
Hydration – Make sure your dog has access to fresh water.
Comfortable rest – Keep your dog in a clean, dust-free environment.

Important: Do not use human antibiotics or nasal sprays. These may be harmful to dogs.

Veterinary Treatment

If your dog shows signs of infection, professional veterinary care is essential. A veterinarian may recommend:

Antibiotics for bacterial infections
Antifungal medications for fungal infections
Nasal flushing or endoscopy to remove foreign objects
Dental treatment if the infection originates from teeth
Anti-inflammatory drugs to reduce swelling and pain

When to See a Vet Immediately

Thick, bloody, or pus-like discharge
Swelling of the nose or around the eyes
Difficulty breathing, wheezing, or open-mouth breathing
Loss of appetite and noticeable lethargy
Symptoms lasting more than a few days without improvement

Final Thoughts

A dog’s nose infection should never be ignored. While mild irritation may improve with simple care, true infections need professional treatment. Early veterinary attention can prevent complications, reduce discomfort, and ensure a faster recovery.

Dog Nose Infection: Causes, Symptoms, and Treatment