I developed heartburn/reflux while on Mirena and still post. I does seem somewhat better. I tried prevacid for the 14 days as recommended. Seemed to help. The prilosec I was taking as a Rx didn't seem to be working. Trying some natural remedies. It seems to come and go, but when I have it I feel so crappy, miserable. I doesn't seem to matter what I eat or don't eat. Good luck, I hope yours goes away quickly!