My cat has a bad wound behind her ear. What over-the-counter options?

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.

This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria). It may heal on its own, even though it will take few days. Disinfection may be done at home with very diluted hibiscrub or betadine or salted water baths twice daily. Buster collar may be useful as well to avoid any licking. If the wound will not heal/or at least improve in 5 days, a check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. 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. If this answer was helpful please let us know, this will be used to improve our service!

From the picture I can only say this may be due to a trauma or localized spot of skin infection (likely to be caused by bacteria or fungal). A check up, appropriate disinfection and possibly antibiotics or antifungal meds (oral, topical or in a shampoo formulation) are needed to solve the problem. More investigations like sampling and bacterial swabs would be needed to determine the underlying cause more specifically. In my experience I have seen large wounds like this one from Poxvirus infection (but usually other wounds are present as well). I would suggest to handle this wound always with gloves (you are doing it anyway as I can see from the pic). Buster collar may be useful as well to avoid any licking. 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.

This presentation could be due to a trauma 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. An abscess may be present and this may need to be lanced and flushed. 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 (if any). 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. If this answer was helpful please let us know, this will be used to improve our service!

Poor Mishka. Thank you for providing a picture, it's very helpful to me. I would gently clean her wound with warm water and antiseptic soap. To keep her from scratching at it, you can put an Ecollar on her. You can get one at a pet store or make one at home. Keep her indoors for now at all times while this is healing. Do not let her outside, especially not with the Ecollar on. I wouldn't even take it off to let her outside, as she will immediately try to scratch the wound. Keep the wound clean and dry, and monitor it for signs of infection. If you see redness, swelling, warmth to the touch, or pus, then it is infected and she will need to see the vet for antibiotics to treat it. I hope this helps!

That could be ok but it is best to repost your question and attach a picture of it to have a complete and reliable advice from us. As you suspected, this presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria). Disinfection can be done at home with diluted hibiscrub or betadine or salted water baths (twice daily as long as needed). Buster collar may be useful as well to avoid any licking/scratching. all the pus must be removed and the wound must be flushed. 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. Please find the time to give us a feedback about the consultation as that will be used to improve our service.

Certainly a buster collar would avoid further scratching and an antibiotics (oral, topical or in a shampoo formulation) will avoid any risk of infection. Even though a picture of the wound would help to determine the most appropriate underlying treatment more specifically, I think in this case a vet check up would be ideal. 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. If this answer was helpful please let us know, this will be used to improve our service!