Birth control iud

Mandy
So I am on the Ortho Tri-Cyclen pill to prevent pregnancy and also to help with acne. The acne I was getting wasn't too bad but they were cystic pimples. My skin is also kind of oily in my t zone. This pill has helped a lot. I've been interested in getting the iud skyla or mirena because sometimes when I take the pill it makes me nauseous and I forget from time to time. So my question is does any one have similar skin like mine who has ever used these or is currently using and how did it effect your skin? Also is it true that they cause infections?