Hello, Thank you for posting on HCM. Melasma is a kind of hyperpigmentation dictated by hormones and sunlight. Since you have already tried and failed on routine treatment i would advise you to consult a good dermatologist for proper management. I would suggest you series of chemical peeling like Jessner peel or Yellow peel with or without prior microdermabrasion. Alternatively, you can also opt for laser therapy or mesotherapy. Always use broad spectrum sunscreen beforw goin out in sun. Hope this answer was useful, Thank you Dr Hardik Pitroda