Abcess in a cat? Ever seen this?

[tencats]

22. That one looks like it will need some help to closeup there.

But first, is there anything like a strong pungent odor at the wound site? You will, to be sure about it, touch or blot the sore and check for any foul smell about it. An ongoing infection will stink and the wound will need to be flushed out. I will flush a wound with a product called Dermachlor Flush Plus which can be commonly purchased for about $9-$12 for 16oz bottle. After cleaning out a wound I like to use Dermachlor Rinse padded on daily along with a warn wet compress 2X daily for up to 10+ minuets. Google it and also instructions on flushing a bite wound on cat. Its not difficult to do and its vital to clean the wound for it to have a chance to heal. When I irrigate a wound I look closely at the margins of the wound and its depth. On a deep wound the irrigating stream will typically lift up the skin around the margins and reveal any deeper pockets of decaying tissues. You can do this and mostly I find the Cat will stay calm enough if I have a willing helper with thick gloves. Second, your Clavamox dose is very good to have started and could be needed for at least 14 days and likely longer. Ten pounds of Cat? I find that a shallow wounds no larger then a dime on cats can usually close and fill in with a minimum of human help. You describe the wound here as half dollar in size and it appears deep in your photo. But the Cat has full normal movement in that back leg so probably its not very deep then? I would remove any dead skin flap and shave the fur back a good inch all around the wound. You say the Vet will want $500 plus?
The Veterinary Clinic I use it not a cheap one did just this past month charge me $127 total for my latest wounded Cat. I have no clue to your location but I'm sure that my Vet invoice is avg cost for maj metro area. I delayed taking him for about 10-12 days after he had been bitten on his mid back because I didn't know that the bite wound had so quickly closed up. It abscessed and then ruptured at my touch later. Its a big big male Cat and no one would get a daily oral antibiotic into to him. He had to go to the Vet. My invoice was just typical I believe for the problem. Items were $57 full exam included shaving fur around the wound+flushing out, $50 Cefovecin inj antibiotic good for 30 days, $10 Panalog ointment and something else I don't remember what right now. The Dr told me that it looked like the wound would possibly need help(surgery) but I wanted to see myself if it could close without more cost. So far its been good. Cost to surgically close a large wound probably upwards $700 today. But a decent Vet I think would work with you. The one big cost one I suffered was for a Cat with a very deep, very infected rotten bite wound on his lower backside. I wonder if your Cat's wound is like you think also, a bite with a tear out. I remember another cat of mine now that 3 years ago went in for a somewhat fresh 3/4 inch long slash wound on the side of his head. Got him 4 stitches to close it up without anesthesia, 10 days antibiotic, cost $150 and all was good. Yours being on the back leg, possibly the Dr would be willing to work it up without the big cost of anesthesia, inserting a drain and all. Looking at that pic again I sure wouldn't want that to get deeply infected there. Hope it plays out well.