Hi, I hv just brought melacare forte cream and still not applied as i was sacred , my face skin colour has become very dark and lot of marks are there but if I m using this now and if I stop using after a month then will it darken my skin the same or worse, and the other thing how am I suppose to apply this on my face, and after how many minutes should I wash my face, i am 27yr old with a five year old kid