Sorry to hear you have been troubled by melasma for years. This is chronic pigmentary condition that can be challenging to treat. Lasers would certainly not be my first choice of treatment as it can actually worsen melasma if the parameters used are too aggressive.
We do see a large number of melasma patients and I have had a lot of success in their treatment by advising strict sun protection, medical grade lightening creams and oral medicines such as tranexamic acid. We need to discuss your suitability for taking the medicine as it is not recommended if there are certain underlying conditions.
Hope this helps.
Best regards
Dr Stephanie Ho, Dermatologist