Need doctor's help! will muscovado sugar aggravate acne?

No: Muscovado is a very dark brown sugar that contains some mineral impurities that make it more acceptable to "natural foods" folks than white sugar, though it will affect you in the same way. It's not going to exacerbate your acne, and you need to remember that all acne can be managed scientifically. If topical benzoyl peroxide doesn't clear you, your physician can.