I have noticed some darker pigmented spots on my cheeks and small reddish bumps and pustule pus filled pimples which becomes spots painful on my cheeks on my forehead area noticed very light pigmentation, Based on a visual exam, do these appear to be Post-Inflammatory Hyperpigmentation (PIH), Melasma, or something else? I am concerned about my skin appearing dull and would like a professional assessment of my current skin health." Secondary Concern: Product Selection and Routine "I have recently started a basic routine of moisturizer and sunscreen at home. I am interested in adding a chemical exfoliant (like an AHA) or a brightening serum (like Vitamin C or Niacinamide). Given my skin type, which specific active ingredients would you recommend for my pigmentation? Are there any ingredients I should strictly avoid to prevent irritation or worsening the spots? How should I incorporate these into my routine (frequency and order) to ensure I don't damage my skin barrier