I'm currently using Quinoderm which has Benzoyl Peroxide as its main ingredient you can get 5% or 10% and i'm pretty sure you can buy it over the counter in a pharmacy, I've heard great things about this and it was prescribed to me by my doctor, I've been using it for a week now and I've already noticed that I've not been getting any new spots and my blackheads look smaller!

I tried using it but it just irritates my skin. Have you ever tried using tea tree oil? works same as Benzoyl Peroxide apparently and in my case no side effects like with benzoyl preroxide.