I came off Yasmin to TTC, but thanks to PCOS my cystic acne is back with a vengeance. I've seen various people talk about azelaic acid (Skinoren?), Duac, Zineryt, Dalacin T and 2.5% Benzyl Peroxide (which didn't work when I was a teenager). Has anyone used these when TTC/pregnant? Any more recommendations to ask my GP about? DH is being very lovely, but the only way I'm going to bed at the moment is with a paper bag over my head.