A painful boil

Hello I have a painful bull on the inner part of my right leg at the bottom I have hepatitis c chronic and scheduled to see the doctor to go to my first appointment may. 11th. I have research these sores on my legs and I'm sure it's related to my hepatitis c is there anything I can do besides keeping my legs clean not wearing tight fitting clothes, and the usual steps to preventing a boil in the first place.. is there any vitamins or anything I can take