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My dog's ear rash is getting worse. Is it a food allergy or infection?

Updated on September 23, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 2 years and 8 months old | 9 lbs

My Luna has developed what seems to be a weird rash on her ears. One ear is a worse than the other. I checked for fleas but I did not see any. I am wondering if this would be normal for a food allergy? She’s had this issue for a few days but now it seems like it’s getting worse.

2 Answers

Most Helpful Answer

Dr. Strydom, DVM

Answered By Dr. Strydom, DVM

Veterinarian

Published on June 4, 2019

This appears to be either a mild bacterial infection or an allergic reaction of some sort. I suggest you do the following:

1. Give Children's liquid Benadryl (12.5mg/5ml) and she can 1/2 teaspoon twice a day for the next couple days in case of an allergy.

2. Purchase these medicated pads and wipe the affected areas once a day until healed. If not better or resolved in about 7-10 days then have your vet check her out.

( https://www.allivet.com/p-5393-douxo-chlorhexidine-3-ps-pads-for-dogs-and-cats-30.aspx )

I doubt this is a food allergy; possible but not probable. Hope this helps. Best wishes.
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