Another side effect of benzoyl peroxide is sensitivity to sunlight and other skin products.
I think that benzoyl peroxide is great for acne but when I use it, my skin peels and fresh skin comes up. This fresh skin is very sensitive so if I go outside without protecting my face with a hat and sun protection cream, I get a terrible sunburn.
I also cannot use any other harsh product on my face when I'm using benzoyl peroxide because it will irritate my skin. I only use a very mild face wash when I'm using benzoyl peroxide.