my derm told me that once the brown spots fade away from the bleaching cream, that i have to stay out of the sun or wear a hat or something b/c the spots could come right back....how long is this going to go on.....is there a certain amount of time b4 i can go out in the sun again and the spots wont reappear???please help
Hydroquinone-based creams like the Lustra you are using can actually make you darker if you don't take precautions against sun exposure. I don't know how long you would have to be this careful, but my guess is as long as you are using the hq product.
Regardless of whether you use HQ, it is a good idea for everyone to apply sunscreen every single day, come rain or shine, anytime in the day when you have to step outside.