How long will benzoyl peroxide red marks last and how can i reduce the redness?

Unclear question: Is the benzoyl peroxide making your face red or do you have red marks from old pimples. If the red marks from the old pimples are what you are talking abou, they will fade with time. If your whole face is red from benzyl peroxide you may be using too strong a strength or it is possible that you cannot tolerate it at all. This is true for some patients.