I have been reading some of your replies and it seems you have knowledge and insight regarding skin cancer. Can you please read "Skin Cancer" from Mo987 and let me know if you have any ideas, or answers.
Thank you.
Monica
With your history I would say you need to play "rather safe than sorry". Get it done as soon as possible. Your dermatologist is the best person to advise you and they have said to get it biopsied. I would trust their judgement over all others.
Take care.