No relation to melasma and acne, however if acne 'scars' in certain spots- called PIH or Post Inflammatory Hyperpigmentation, it can look like melasma. See video below- first 2-3 minutes explains brown spots caused by acne. Treatment is somewhat similar (not exact) as with Melasma treatment, namely the use of bleaching creams called HQ and a laser call Picosure.
All the best, Dr Davin LimLaser and aesthetic dermatologist,Brisbane, Australia.
Thank you for your question. Melasma is not related to acne or excess hair. Acne treatments, hair removal, and other irritations cannot cause melasma. Melasma is a chronic skin disorder that results in symmetrical, blotchy, brownish facial pigmentation.