I agree take some OTC meds before you go. Mine burnt a little when they injected the dye but nothing i couldnt handle. It just felt very warm for a few seconds with some cramping. They doc told me it can make you more fertile for the following three months after it !!!!!!!!!!!!!!!!!!!!!!! i got prego on my third month after it (lost it tho) I also recomend that you bring a pad to wear after it. I leaked dye the rest of the day after mine. YOU'll do great and hopefully it will make you more fertile