For melasma mam big problem in my feace

Effective ways to treat melasma :
creams and topical medication :
1. hydroquinone ( need some months to see results )
2. vitamin A , retein-A , tazarotin ( need some months to see results )
- using laser treatment to remove black skin or change skin layer ( effective but need more than one session )
Recommanded product to treat melasma :
1. Olay White Radiance Brightening Intensive Cream
2. loreal whiten products 
3. Kaya Pigmentation Reducing Complex
general advices :
1. consider consult a dermatologist first before start looking for medical treatment and follow doctor instrcutions 
2. use sun block products regularly
3. pay attention to personal hygine 
4. always keep you skin moist