This past spring, I bought my first menstrual cup, a lunette. After the initial learning curve, I'm really happy with it, but there's one problem that's been bothering me.

It burns to use the bathroom after I remove and then re-insert it. I cut the stem completely off because it stuck out and was bothering me and I thought maybe it was irritating things or something, but I'm still having the same problem. It burns only if I use the bathroom right after inserting and removing the cup, not after a few hours or even minutes.

Am I doing something wrong? I'm trying to be gentle and literally I push it in, make sure it's sealed and then leave it alone but I don't get why this is happening. I avoid brushing against the area. I know I clench my muscles a bit too much but I've been working on relaxing them.

Any suggestions as to why this is happening? I really don't want to damage myself or have to stop using it!