My indoor cat scratches to open sores. Is it allergies? What to do?
Itchy skin like this is often due to one of the following things:
1) Allergies - this can happen suddenly and is usually due to an environmental (i.e pollen) cause. Allergies need to be diagnosed by a veterinarian, because other problems can look similar and the treatment would be different.
2) External parasites - fleas, lice and mites can all cause intense itching. It's best to have a vet check him for mites, because these are microscopic and can cause intense itching.
3) Over-bathing, or using the wrong product for bathing - Bathing too often can cause the skin to get dry and irritated. Cats should normally be bathed no more than once a month with a shampoo that is labeled for cats. If you bathe more than that, or use a shampoo or soap that is meant for people, then you could be damaging the normal protective barrier of the skin.
One thing you can do for itchy skin, is give a bath with cool water using an oatmeal or aloe shampoo. You can get these shampoos at the pet store. Do not apply shampoo to the sores - it's better to just flush them with cool water.
Considering he is scratching to the point of having open sores, I recommend taking him to the vet for an examination. We can usually discover the cause quickly and provide the most effective treatment. For more information about allergies and itching, I recommend you read the information at the links below.
https://www.petcoach.co/article/how-to-tell-if-your-pet-has-allergies/
https://www.petcoach.co/article/4-great-strategies-for-relieving-your-dog-s-allergies/
https://www.petcoach.co/article/skin-allergies-vs-food-allergies/
I hope that helps and Tito gets better soon.
Updated on September 23rd, 2025