My 14 year old cats' toes are very swollen. He cannot bear weight on that foot. I took him to the vet and he had 10 days of clindamycetin which didn't help. There is no drainage and the vet didn't think anything was fractured.
I recommend an x-ray. This will tell you for sure if there is a fracture. Another possibility is an abscess in the foot. I recommend another visit to the vet since there is no improvement. Good luck, vetcare