My 14 yr old cat has a sore on her nose that is growing. It is sort of like a large pimple. Her blood tests are normal. The cell test from the sore show a large infection. I gave her antibiotics and nothing happened. Of the 3 vets that looked at her, none know what it is. All of them want to take it off. She is still eating and still follows me around when I am home. She is 14 yr old and I don't have a lot of money. I am scared if I ok the surgery it will come back or the procedure will be too much for her. Help!