Thanks to all that replied. I don't have the right medications and tools to treat her feet, so I decided to take her to the vet. The appointment is in two days. I am not confident to treat her by myself since I afraid to make things worst. When I tried to clean her feet today with some apple cider vinegar but I accidentally made it bleed again. She wouldn't even let me hold her without trying to escape so I can't bandage it or anything. I have anti-bacterial cream but I don't know if it will work. At this point all I can do is wait for the appointment. The examination fee will be $70 and who knows how much the surgery will cost. I want to give her a chance at least. But if nothing works out, I'm afraid I'll have to put her to sleep.