PLEASE, please, please see your dermatologist to make sure this isn't a melanoma which is a deadly form of skin cancer if it's caught late.  If diagnosed early, it's completely curable.  If you don't have access to a dermatologist, see your regular doctor or a plastic surgeon. Your doctor may want to do a small biopsy which would allow the mole to be removed and to have it read by a pathologist also. Here is more information on moles.  Dr. I