Im in retacnyl 4 5wks for hyperpigmentation.used hydroquinine 4 30d.but the problem is not better.how long must i be patient?

Sunblock always: Hyperpigmentation is difficult to resolve. It is treated and managed in an ongoing manner with multiple approaches. Retinol is a cornerstone of the treatment, and should be ongoing, Hydroquinone can be used in bursts of 3 months. Other non-Hydroquinone skin lightener a can be rotated into the regimen. Depending upon the depth and the cause of the hyperpigmentation, certain lasers are used as well