Taking an oral contraceptive pill (specifically Diane35, Ortho Tri
, Cilest or Yasmin) will also block the effects of andrgoens and clear your acne quicker.
It is unusual not to experience dry lips whilst the drug shrinks your sebaceous glands. This is an expected side effect which shows your medicine is working. It is good that you are under the care of a dermatologist. However, I cannot recommend buying Accutane without a prescription.