The Efficacy in Treatment of Facial Melasma Combined With Thulium 1927-nm Fractional Laser and Topical H2R Antagonist

Topical H2RA (2% famotidine solution solved in double-distilled water (containing poloxamer 407, glycerol, lauryl alcohol polyether-4, polyethylene glycol-8, and propylene glycol)) was applied topically twice per day in the morning and the evening for 16 weeks.

1927nm fractional laser (South Korea, WONTECH, Lavieen) was performed with 4-week interval (Week 0, 4, 8, 12 and 16) for a total of 4 treatments. The parameter of 1927nm fractional laser was as follows: duration 600-800um, 10w, density 0.8mm, 1 pass.