Petco Text Logo
Petco Pet Logo

My dog's tail is itchy from ants, Benadryl isn't working. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 3 years old | 19 lbs

My dauchsand Cassie is scratching and biting her tail where it meets her back and whines. She may have gotten into some red ants. I have been giving her benadryl and it doesn't seem to help. What should I do?

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on May 21st, 2018

This is probably caused by an allergic reaction. first of all make sure you de-flea Cassie regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or cyclosporin in order to stop the allergy.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored