I'm glad that 小叻 starts this thread! I wanted to know, too. My sister and I both have oily and acne prone skin. I suffer from constant breakouts on chest & back. Lately I've been using Cetaphil Cleanser (sold at any drugstore). I follow the instruction to massage it on for 30 seconds when I shower and it seems to help lessen the breakouts.
My sister recently starts to use CLINDOXYL GEL (the chemical name is Clindamycin Phosphate-Benzoyl Peroxide Gel 1-5%) which is a prescription drug. You need to get a prescription from your family doc. She swears by it and I can see the results. Her back is smooth with no scars at all. Here's her instruction: "I like applying a thin film across the affected area right after the shower when your skin is still a bit wet. Then let it air dry. Then scrub it off completely the next morning otherwise the gel will ruin your good clothes =)"
"""STOP!別再錯誤保養啦!"""
this book is written by a japanese doctor, which is so popular in hk since it is highly recommend by a hk tv star.
it said you don't need to use any sunblock, your regular make-up is good enough to block the uva & uvb. well, i don't really buy it, but you can try.
Benzoyl Peroxide will dry out your skin, if you have sensitive skin, be careful.
i would suggest you to see a chinese doctor la