Conjunctivitis (pink eye) in dogs
Conjunctivitis is inflammation of the pink tissue around the eye. Allergies, infections, dry eye and irritants can all cause it.
Last updated: October 2026 · 3 sources · see sources
Signs to watch for
- Red eyes
- Discharge
- Squinting
- Rubbing the face
Trouble breathing, collapse, repeated vomiting, not peeing, or a seizure that lasts more than a few minutes needs a vet right away. See when to see a vet.
How vets diagnose it
Your vet examines the eye and may do a tear test and dye test to check for dry eye or ulcers. [3]
How it's treated
Treatment depends on the cause and may include eye drops, allergy treatment or dry eye medicine. [3]
Medicines your vet may mention: Optimmune (Cyclosporine eye ointment). We don't list doses; your vet will decide what fits your pet.
What it costs to diagnose and manage
| Item | Typical US price | Src |
|---|---|---|
| Diagnosis (exam and tests) | $75–$200 | [1] |
| Treatment | $50–$200 | [1] |
| Treating pink eye, national average (CareCredit) | $345 | [2] |
These are typical US ranges from the sources listed. Your pet's costs depend on how severe things are, the tests your vet recommends, your pet's size and where you live. Ask your vet for a written estimate.
Outlook
Most cases improve quickly once the cause is treated. [3]
Common questions
What is conjunctivitis (pink eye) in dogs?
Conjunctivitis is inflammation of the pink tissue around the eye. Allergies, infections, dry eye and irritants can all cause it.
What are the signs of conjunctivitis (pink eye)?
Common signs include: red eyes, discharge, squinting, rubbing the face.
How do vets diagnose conjunctivitis (pink eye)?
Your vet examines the eye and may do a tear test and dye test to check for dry eye or ulcers.
How is conjunctivitis (pink eye) treated?
Treatment depends on the cause and may include eye drops, allergy treatment or dry eye medicine.
How much does conjunctivitis (pink eye) cost to treat?
Diagnosis (exam and tests): $75–$200; Treatment: $50–$200; Treating pink eye, national average (CareCredit): $345. Costs vary with severity, tests, your pet's size and where you live.
Related
This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.