acne and blAck heads

I have lots of pimples on my back and to vanish it.though I don't apply many creams.I don't eat more oily food then also I get pimples.I have more heat in my body.what's d solution?

female diet and workout.

My age is height is5'3".my weight is 73kg.I want to loose 20 marriage is in the next can I get help here