I had severe back, neck, butt, leg, and hairline/scalp acne for over a decade. Tried lots of things until being cured within weeks on this therapy. These medications are extremely safe with none-to-minimal side effects on humans at therapeutic doses.

Western study:
https://www.sciencedirect.com/science/article/pii/S120197121201315X

My thread detailing my experiences can be found in the body acne forum.