Nikki, my gyno was going to send me for the HyCoSy. It was the dye done by ultrasound. And I think the dye they use is just coloured saline, so totally safe and it wont harm anything. It should just flush out, and it sounds like yours did. There is nothing worse than coming out of an appt with more questions and feeling lost and more confused than when you started... Get on the phone to your gyno and see if you can get some clearer answers.