Yesterday morning I noticed my dog squinting at me. I first thought he was just sleepy but then later noticed that his left eye looked a little puffy. Later in the afternoon it started to get runny and when I cuddled him he would try to rub his eye on my arm or leg. I took him to the vet this morning and they did a test and he apparently has an ulcer in his eye?! They gave me some antibiotic ointment to put in his eye 2x/day and told me to come back later this week. I've had my dog for 7 years and he's never had any eye issues. He's a chihuahua mutt. Have any of you had this happen? Did it go away without worsening?