my skin is become dark in underarm area ,thigh and neck area.. stretch mark on belly... wht should I do?

A. Stretch mark cannot be remove completely without the dermatologist procedure.. but you can reduce them.. drink a lot of healthy fluids.. eat balanced diet... keep your skin hydrated.. apply aloe Vera gel, coco butter cream, coconut oil , vitamin E oil, on the affected area regularly Also you can apply lemon juice on the area.. You can apply it directly or by mixing it with some other oil too.. There are many specific creams like stretch nil, bio oil, Palmer's, etc available in the market for the stretch marks, you can also apply them