Hi Doctor: My name is Sameer, 30 years old man from Iraq, I work assistant lecturer. My question is That, I have a Dark spot on my left cheek since almost 10 years. I visited more than one doctor,and used several medications including Hydroquinon 4%, with Retinoic acid or Tretinion with sunscreen although i didn t work under direct sun light. I need your advise about my problem? Thank you very much for this helpful website.