My outdoor feral cat has an ear sore. Will it heal on its own?

Poor Luna. It looks like she may have created a skin infection behind her right ear. We will commonly see cats create wounds from scratching at areas. I would recommend having her evaluated for an ear infection and to evaluate for any secondary skin infections. If there is an underlying cause for her to scratch that area (ear or other skin problem), you will need to treat that underlying cause first in order to allow that area to heal. I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

That looks like it may be a hematoma or a wound that has become infected (very common in outdoor cats). Unfortunately, it needs to be seen by a vet in person so it can be clipped away and the area cleaned/antibiotics given as needed. If you are unable to catch him and bring him in yourself, you may see if your local humane society or animal control can come out to humanely trap him so he can be brought in fore care.

Thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear that. This is a type of open wound that at least on the pictures it seems like it will require sutures to heal properly. Also, these wounds tend to get infected so antibiotics would be recommended. Pain medications are usually used as these tend to be painful. I recommend that you have Hera evaluated by your veterinarian for further assessment and treatment. Good luck and have a great day!

With a clean ear canal, the most common cause of tiny bumps on the ear itself is related to hypersensitivity reactions from insect bites. The inflamed and sore lesion in front of Teak's left ear is most likely due to self-trauma from him scratching. The concern is that this skin may be infected from the excessive scratching. Your best bet is to take Teak to his vet for an exam because he may need a course of antibiotics and antihistamines to manage this issue. Be sure that Teak is receiving a high quality flea preventative (such as Advantage or Revolution) monthly because flea bites can also cause bumps on the ears. I hope that all goes well!

It’s difficult to determine the cause of the injury from a photo but often times a sore at the base of the ear may be due to self trauma from scratching. If scratching enough to create a sore it may indicate an ear infection or ear mites.

This presentation could be due to a trauma (autotraumatism) or localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any scratching. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

That does look suspicious for a bite though it could also be a scab for many reasons. I recommend to have him examined by the veterinarian if there is a chance he got in a fight. Bites often turn into abscesses and giving him an antibiotic as soon as you see the wounds can help prevent that. I hope this helps.