After dogs get conjunctivitis, they will have symptoms such as increased eye secretions, red and swollen eyeballs, tearing, photophobia, pain, etc. In severe cases, yellow-white pus may flow out, and even blindness may occur. If your dog has similar symptoms, you need to go to the hospital to check whether it has conjunctivitis, and then treat it in time, help the dog clean up eye secretions, avoid infection, and instill eye drops on time.