I wish I had a magic wand for you but I do not Different things work for different people and you might have to try several products before you find what is right for you.

However, I can tell you from personal experience that the only thing that helped my chest and back acne was birth control pills. Yaz.

I am currently on accutane and have tried every single other thing out there. Accutane is really helping my face (it's a last resort and a huge decision) but Yaz helped to clear up my chest and back before that.

I don't know if bc is an option for you, it's a pretty big decision but it worked for me. Even then, I had to try more than one before I found what worked for me.

Good luck!