For several years i've have a single wart on the sole of my foot...largely unchanged. still there after dr burned it. ok if i continue to ignore it?

You can: Warts on the sole of your foot can be bothersome. If it causes you any pain or discomfort i feel that you should go see a dermatologist again to have it removed. There are multiple methods to have it removed, ask about the "triple acid" method and have the dermatologist discuss the pros and cons of each method so that you can choose which is best for you :].