Can bleaching cream and tretinoin remove red marks from chicken pox 1 and half months ago?

Retin A is a great topical for acne and can be used for fine lines and mild wrinkles, but there are other treatments that could be a lot more effective for scars- either laser, peel, microneedling or some other treatment would improve your fine scars.

The answer is yes, but combined with high SPF during the day because retinoid products promote skin cell turnover and the new skin is delicate and should not be exposed to the sun.BestDr. Karamanoukian

Retin a will increase collagen.    There is usually minimal changes to scars in general.   Pit scars are deep scars and you will not see any significant changes.