Hi Vets, thank you for your time!
Just noticed this on my boy’s underarm. He’s a very temperamental cat (doesn’t like being handled) and actually didn’t mind at all as I looked at it and touched it to see if it was a lump or anything, so seems it doesn’t hurt or bother him. Has a sore hole and another spot that looks like maybe it was previously a hole but healed over. Doesn’t have a bump but looks raised or like it’s healing from being raised and obviously some balding around it. He has been prone to some over grooming in the past but usually his belly and tail, and we hadn’t noticed him over grooming lately. Does it look familiar? I know skin issues can be a wide spread of possibilities but just curious for another set of eyes/opinion.
Possibly useful context:
I did start my cats on a new food about 3 weeks ago, but overall it has made their fur and skin really great, silky and no dandruff. They’ve been fed this food before.
I was away for 8 days isolating with Covid, he was with his human dad who we already live with so he wasn’t alone at all really, but maybe it did stress him more. He has gotten sick while I’ve been gone before.
Could it be a spider bite? I don’t believe it could be fleas, we’ve never had them and he stays fully indoors. Haven’t noticed him itching more than usual or anything of the sort. He’s been calm and content.
He’s 10, male, 16 lbs of big bones and a bit of chonk, and has refused to eat anything but kibble his entire life despite dozens of attempts with wet food. Bathroom goings are normal.
We have a second cat and they do like to wrestle, not sure if maybe his brother somehow managed to get ahold of his armpit?
I have some topical treatments I’ve used when he gets kitty acne from nuzzling a blanket too much (before we can dissuade him). I’m not sure if these could help, or if it looks on its way to healing already anyway? I haven’t applied anything yet.