Petco Text Logo
Petco Pet Logo

My dog's allergy symptoms are back, even on his special food. Why?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 8 years and 7 months old | 18 lbs

A few months ago I was researching dog food allergies and realized Moose has had most of the symptoms; itchy ears, licking his paws, vomiting (almost once a month), and light-ish poop. I switched him to a new food and all these symptoms went away. The new food started getting expensive so we tried out a cheaper one but all the symptoms came back, other than vomiting. I switched him back to the other food and he's been eating only that for a little over a month but he still has the symptoms. Why?

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 Jenny, DVM

Veterinarian

Published on August 22nd, 2018

Food allergies can take 8 weeks to see changes. If there was a secondary skin infection this time then you will need antibiotics to clear that as the food won’t treat that. You can do a weekly bath in a medicated shampoo to help also

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