Petco Text Logo
Petco Pet Logo

Why are my cat's chronic skin sores not healing and he's vomiting?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 3 years and 5 months old | 8 lbs

My cat has sores on his body (including his testicles) he has had them for around 6 months and they still haven't healed. He is also throwing up once a week. We have took him to the vets many times and they don't know what it is but they keep giving antibiotics and shampoo which we have used but hasn't worked. What could be wrong with him? The pictures attached are what the sores look like he has more but I can only attach up to three pictures. Thanks.

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

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

2 Answers

Most Helpful Answer

Published on July 20th, 2017

Your cat could have allergies and these are commonly seen in cats that are vomiting or have skin issues like this. He may need to be on allergy medication like steroids, or benefit from a strict prescription food allergy diet trial with a food like Royal Canin hypoallergic or Hills z/d.

Vote icon

2Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Image profile

    Answered By Jennifer Summerfield, DVM CPDT-KA

    Veterinarian, Certified Dog Trainer

    Published on February 16th, 2018

    Poor kitty! I'm sorry to hear that she's having this problem. There are many things that can cause sores and other skin issues in cats - a food allergy is one possibility, but she could also have an allergy to something in the environment, a bacterial or fungal skin infection, or skin mites (mange). If she hasn't been to see a vet about this problem, I would recommend taking her in for an exam. Your veterinarian may recommend starting some medication, such as an antibiotic or steroid, to help resolve the problem. If she does have a food allergy, it's recommended to feed a prescription hypoallergenic or limited ingredient diet like Purina HA or HIlls z/d, since most over-the-counter foods contain too many different ingredients to be helpful for this purpose.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

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

Sponsored