Abstract: Melasma is a disorder of hyperpigmentation that is frustratingly resistant to therapy with a high recurrence rate on treatment discontinuation. With the scarcity of melasma epidemiological studies from India, we conducted this study to see clinico-epidemiological trends and therapeutic response. Totally 957 melasma patients were studied during the 5-year period between October 2014 and September 2019. A female preponderance was seen. Patients were classified as early, moderate, and late responders if they had more than 80% clinical improvement within 8, 8-12, and 12-16 weeks rest classified as nonresponders. Six hundred and forty-eight patients with mMASI of ≤5 had been prescribed non-hydroquinone-based therapies who had overall response rate of 40.9% by end of 16 weeks, 309 with mMASI >5 received hydroquinone based triple combination with a response rate of 33.6% at end of 16 weeks. A total of 33.65% responded to triple combination compared to 40.1% in the non-hydroquinone group. All nonresponders received oral tranexamic acid 250 mg twice daily. Most patients on oral tranexamic acid group developed recurrence by 6 weeks post discontinuation, compared with triple combination therapy group who had relapsed by 2 months post discontinuation and 4 months to relapse with non-hydroquinone-based therapies. Side effects experienced were 0.83% in hydroquinone group reporting erythema and burning. 0.57% in non-hydroquinone group perceived stinging sensation and none from tranexamic acid group. The longest follow up available in our study was for 18 months. The emergent need of the hour is a long, safe, and effective therapy for melasma.
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