Hello sir/madam, I have been experiencing acne for more than 2 years. I consulted a dermatologist n now I have got rid of almost all the acne. But I've started getting them back and the same dermatologist asked me to use benzoyl peroxide & pepdox for 30 mins n rinse it off. But after applying benzoyl now I have been getting redness & swollen face. What do I do? Pls do the needful :D thank you.