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My dog's upper lip is red. What's causing it and how to help?

Updated on September 23rd, 2025

Pet's info: Dog | Australian Shepherd - miniature | Male | neutered | 2 years and 3 months old | 24.7 lbs

My dog has recently developed (~8-10 days) a redness on his upper lip between the nose and lip area. No recent diet changes, he is on monthly oral meds for fleas/ticks. It doesn’t appear to be swollen. He was on Apoquel for 3 days last week due to itching/chewing his paws and forelegs but has been off that for 3 days — we attributed the itchiness to seasonal allergens. What could be causing this, and how can I try to help him?

1 Answer

Most Helpful Answer

Sara Farmer, DVM

Answered By Sara Farmer, DVM

Veterinarian

Published on April 13th, 2019

This redness could be related to seasonal allergies as well, and it's possible that Dakota has a secondary skin infection. Mites or even fungal disease could cause symptoms like this as well. I would recommend seeing your veterinarian to see if they think antibiotics or other medications may be necessary.
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