Hi,
The best way of getting rid of PIH after chemical peeling is to avoid further damage to the skin and to avoid UV exposure. The use of topical lightening creams may help hasten the process. It will take an average of 2-6 months before the PIH clears.
The use of light-based devices such as IPL and laser-toning gives unpredictable results and should be carefully discussed with your doctor before proceeding.
In the future, skin priming with topical lightening creams and using milder chemical peels will help reduce the risk of PIH post-peel.