hi! i am new here. i have a HORRIBLE CASE of acne due to PCOS and nothing seems to work. i just started on birth control pills for my PCOS and hopefully it will work on my acne as well. and recently, i have started using BENZOYL PEROXIDE (BENZAC AC 5%). it has been a week and a half and yea, it helps dry out my pimples (but there are still new popping pimples) and i am grateful because the situation has improved even for a bit. but it really makes my skin dry but nothing that couldnt be helped with moisturizer. 

but then i woke up this morning and my face is itchy all over and the areas i put BP on was MAD RED. really really red. nothing like this happened before but the previous night i might have put on a little too much of BP on my skin. i am worried. and scared. i just want my pimples to disappear. will this pass? should i stop completely or should i just wait for my skin to calm down?

ive put on moisturizer on the pic thats why my skin looks shiny. i got lots of acne marks. its kind of depressing when i see my face in the mirror. i used to be acne free. my college friends were so jealous asking what i do. i dont have a routine before, i just was my face morning and night. then this blasted PCOS came. i cant do anything but sigh. 

thanks for those who will read and reply.