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Hello, my name is***** and I am happy to help. I would recommend removing the sports tape, it is very easy to put it on too tight and if there is infection, the tissue will try to swell and block blood supply.
If the cat litter was stuck, I suspect it was stuck to oozing or pus from something that has caused infection or trauma to the pad. I would continue the Neosporin, but I'd put it on then give your cat some canned food to distract from licking the pad while it soaks in. I'd then see your vet tomorrow to better assess the wound and determine if antibiotics are needed.
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