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1. It is a basic procedure, and can be removed in a single session I think.
2. You can consult any other dermatologist nearby or if possible a medical college. In medical college, they might ask you to repeat HIV and other tests.
3. If you have not got till now, get these investigations done,
A. HBsAg (hepatitis B surface antibody).
B. HCV (hepatitis C virus).
C. VDRL (venereal disease research laboratory test).