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Updated on September 23rd, 2025
Pet's info: Dog | Lhasa Apso | Female | spayed | 13.2 lbs
Female Lhasas left eye has an ulcer. We were perscribed terramycin ophthalmic ointment. I am nervous because it's very deep. The eye is really red & closed partially. Should be be taking more aggressive action?
2 Answers

Answered By Rebecca, DVM
Veterinarian
Published on August 25th, 2017
Answered By Dr. Rachel
Veterinarian
Hi there and thanks for using Petco Pet Education Center, formerly Petcoach! Eye ulcers can quickly become complicated, so it is important to maintain close contact with your veterinarian during treatment. Typically, ulcers are diagnosed by a fluorescein stain (yellow dye) that allows us to determine the extent of the ulcer. The usual treatment for superficial uncomplicated ulcers is a topical antibiotic ointment or drops such as terramycin. Usually a cone collar is needed to ensure dogs don't paw at their face or irritate it further. The eye should improve over subsequent days, and not worsen. If you feel that Sadie is becoming more painful despite treatment, it would be a good idea to recheck with your veterinarian.
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