Hair follicle infection..HELP!?

I have acne, scars, and bumps on my neck, back of my neck, on my upper back, spreading down, on my chest, spreading down to my stomach, and it's spreading onto my arms, both of them. I DO NOT like to put drugs or medicine in my system whatsoever. Apperently the infection is in my blood stream..according to the dermatologist that I went to like three times. What do I do?..It's getting really bad =/..