I visited my GP today to get a prescription for Duac (benzoyl peroxide 5% + clindamycin 1% - it worked well in the past) and asked him if I should also be moisturising. I have sensitive/ combination skin which is sometimes dry and sometimes very oily, and I know that Duac can dry out the skin. He said that most people should moisturise, and recommended I buy some emulsifying ointment.

I picked some up with the Duac, but it looks like quite heavy-duty stuff, and the main ingredients are wax. I'm apprehensive about putting this on my face in case it breaks me out. Has anyone used this before? Would it be a good idea to try it on a small patch of skin for a while before I chuck a whole load over my face?

Oh, and I'm 24, female, with mild (at times moderate) acne - a couple of cysts and a few of those annoying blocked pores splattered over my cheeks and jaw.