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My pet is vomiting, lethargic, and has a swollen eyelid. What to do?

Updated On September 23rd, 2025

Swollen eye lid, lethargic, vomitted

5 Answers

Most Helpful Answer

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Answered By Debi Matlack

Veterinary Technician

Published on January 24th, 2015

I recommend getting your pet in to be seen by your veterinarian right away. Vomiting and lethargy together are very concerning and can lead to dehydration and electrolyte imbalance as well as low blood sugar. The swollen eye may or may not have anything to do with the vomiting. He could be having an allergic reaction. He might have eaten something that either disagreed with him or something that has gotten stuck somewhere in his gastrointestinal tract. He could be sore from a hidden injury you are unaware of, he could have been exposed to some sort of toxin or irritant in his environment or this could be early signs of another condition or disease process. Your pet may need IV fluids to help support his/her system and to be fasted at the same time in order to give the gut a rest. Your vet can do an exam, blood work and possibly x-rays to determine the cause of the illness and suggest an effective treatment plan.

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7Pet Parents found this answer helpful

Related Answers from Veterinarians

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    Answered By Linda G, MS, DVM

    Veterinarian

    Published on October 4th, 2019

    Hello. There are no medications that you can just buy. With this complex of symptoms, you really need to have Sparky evaluated to sort out what is affecting him. He could have an intestinal parasite, an infection, blockage or allergies. Once the underlying cause of his symptoms is identified, then the proper treatment can be initiated to return him to good health. I hope Sparky is feeling better soon & thanks for using Petco Pet Education Center, formerly Petcoach.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 18th, 2019

    Poor Mona! She could have an eye infection or may have injured her eye. The vomiting may be due to a GI illness, eating something rotten, a sudden change of diet, pancreatitis, or a foreign body. The eye problem needs to be checked out asap because leaving it untreated can lead to vision loss. Please take her into a vet immediately. Best of luck.

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    Answered By Megan, DVM, CVA

    Veterinarian

    Published on August 8th, 2017

    Poor Jack. My concern is that he could be getting a secondary skin infection and irritation from the eye discharge. Also, what is causing his eye discharge in the first place? He could potentially have a corneal ulcer, clogged tear duct, or even an infection. I would see your vet for an exam so they can determine what is wrong with the eye and the skin under the eye. Your vet will be able to provide the appropriate medications and drops for both problems. As far as the vomiting, this can be caused by several different things including intestinal parasites, general GI upset, eating something they shouldn't and much much more. Your vet will be able to get more history about the vomiting and help you determine what could be the cause and how to make him feel better. I hope this helps!

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on August 18th, 2018

    Thanks for using Petco Pet Education Center, formerly Petcoach! Vomiting and inappetence can occur from many conditions such as foreign body ingestion and obstruction, pancreatitis, gastroenteritis, dietary indiscretion, among other possibilities. I recommend that you have Tigger evaluated by a veterinarian for further assessment and treatment as soon as possible as I am afraid that he is becoming dehydrated. This will likely require bloodwork and abdominal imaging in terms of diagnostics. Treatment would be based on findings. At the very least your veterinarian could start him on medications to make him feel better. In the meantime, keep water available at all times to try to prevent dehydration. Good luck and have a good day!

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