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My dog's face is covered in itchy bumps. Is it dog acne or allergies?

Updated On September 23rd, 2025

Pet's info: Dog | Bullmastiff | Female | spayed | 5 years and 5 months old | 115 lbs

Pictures now included: Last week my bullmastiff had 2-3 acne spots, or what it appeared to be. We went on vacation and left her home with a sitter. Came back today to find her face full of them (see pictures). She has had acne in the past, but never like this. There are no other lesions on her body. The lesions appear itchy to her (in that she's rubbing her face on the carpet once in a while). She's dog aggressive so trying to avoid taking her in if possible.

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1 Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on September 8th, 2019

Those look like they could be some sort of allergic reaction ongoing, and if it is spreading it would be best to have a sample taken from a vet so that it could be sent to a lab for testing if the cause isn't apparent upon examination and to rule out issues such as growths, tumors, metabolic illnesses, etc. Keeping the area clean and dry and placing an Elizabethan (cone) collar on Rose may also help reduce additional irritation. If Rose is aggressive or uncomfortable at the vet, you may also want to see if your vet can either prescribe a sedative to give prior to arriving which may make things a little less stressful for her, or see if housecall services are an option on your area. Sometimes, just being at home can help a dog stay more calm and less stressed out while receiving veterinary care.

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