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Dog throwing up yellow foam after allergy treatment. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Shepherd | Male | unneutered | 9 months and 20 days old | 30 lbs

Hello so my question the other day turned out to be my dog has allergies and needed anti inflammatory creme. But, when I got home today from school at 11am he threw up his food , then he was good all day , acting normal , pooping peeing , eating , drinking all normal , then I just woke up to him throwing up food again then again , then yellow foamy stuff that was really congealed , almost like it was one peice very elastic yellow stuff...

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on October 5th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Bruno! There are many reasons for the vomiting. Could he be reacting to the cream from licking it or any new medications you are giving for his allergies? I would stop anything new you are giving temporarily. Other causes for vomiting are: intestinal parasites, viral (especially parvo if not fully vaccinated) or bacterial infections, dietary indiscretion, ate something causing a blockage, new food/treats/table food or a food allergy. I would switch him to a bland diet of boiled chicken or hamburger with rice. Feed 1 cup per 20 lbs per day for 3-5 days. If he continues to vomit or stops eating he needs to be seen. I wish you the best!

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