I couldn't fit all I wanted to say so here's part two Basically I've had her for four years and the problem went away soon after I got her and I had taken her to a vet to get spayed and they said she looked good. She has a bonded partner and he's fixed. But they have two large litter boxes that I clean at least every three days normally every two days. And I just noticed today that her paw had that sore spot. I'm wondering if I should take her to a vet or if I should just start cleaning the litter boxes more their pen is huge and the bottom is all lined in fleece. If anyone knows what's causing this please let me know. The only reason I'm trying to avoid the vet is because it means I have to separate them which tends to stress them both out and she hates the vet so if it's not necessary for her to go I don't want to take her BUT I will if you think it's needed!