A.
I have the same issue (C/DD), and I was advised by my doctors to wait on reducing the DD breast until I was done having children. Their reasoning was that the hormones involved in pregnancy and nursing affect the tissue in each breast differently (hence why it got worse when I was pregnant). If I even them out, another pregnancy might result in lopsided breasts again. I certainly don't want to have surgery twice. If you go to a good lingerie store, you should be able to get an insert for the smaller breast. A good one will cost over $50, but that is nothing compared to surgery.