Thank you very much for your prompt response. That was definitely not what I wanted to hear. I have been prematurely graying since the age of 20 (now 22) and exceptionally stressed at the the point of symptom's first appearance and now, it makes some sense. I will go to a dermatologist soon. Thanks again.
It's probably early vitiligo. This has nothing to do with herpes. I suggest that you ask your dermatologist to examine your lip under a Woods light. If that highlights the whitening, he might consider treating it with a topical steroid cream or Protopic ointment. Your dermatologist can elaborate on this when you speak to or see him.
Take care.
Dr. Rockoff