Melasma after Fraxel, made worse by IPL. Besides sun protection & tazorac, what should I do? Is IPL a bad idea?

43yo, male with bl eyes, light br hair, dark complexion. Sought Fraxel re:pair for mild ice pick scars on cheeks. After 5 Fraxel sessions in 07, developed mild bronzing on the cheek and temple sides of eyes that faded over 3 years. 2nd round of Fraxel in 13. After IPL a few months later for roseacea, noticed bronzing above eyebrows. Patches worsen with sun. Been on tazorac since 07, which greatly improved acne & scarring. Besides sun protection & tazorac, what should I do? Is IPL a bad idea?