Suggest Treatment For Recurring Redness,bumps And Acne

I have recurring redness/bumps/acne in one triangular area on my forehead. No matter what I do, it doesn't go away and more often than not, gets worse. I have tried Benzoyl Peroxide, SA, Aloe gel, various face washes and cleansers, but yet nothing seems to work. How can i make this redness and acne go away? I am a 17 year old male with 6' moderate build.