Depending on the cause, treatment can include: removing the irritant and soothing the area with pain medication antibiotics and saline washes to manage infection surgery to treat duct problems or birth defects antihistamines for allergies or other medications.Ĭorneal ulcers. To treat conjunctivitis, it's important to learn what's causing it. Other signs of conjunctivitis include very red eyes, inflammation, blinking too much, squinting, crusty eyes, pawing at the eyes, or keeping the eyes closed. There's a wide range of causes for conjunctivitis, from allergies, injury, birth defects, and tear duct problems, to foreign matter, dry eye, distemper, or even tumors. Mucus, yellow-green pus, or a watery eye discharge can all be signs of conjunctivitis, an inflammation of the lining of your dog's eye. Always talk to your vet to get at the root cause of your dog's eye discharge, because some problems can result in blindness or loss of an eye if left untreated.Ĭonjunctivitis. A watery discharge or mucus from one eye is often a sign of a foreign body, like an eyelash, while yellow-green or pus-like eye discharge could indicate a serious infection. If your dog has clear eye discharge, chances are good it's caused by allergies or something physical, like dust in the eye or wind blowing in the face. Common Causes and Treatments of Eye Discharge in Dogs Learn more here about what to do if your dog has eye discharge. It can be a sign of anything from infection to glaucoma to allergies. Eye discharge is a common problem for some dogs.