I’ve recently bought a menstrual cup and tried it out for the first time this month. I really loved it (at first) but I'm having two big issues.
The one thing is that I put it in and it doesn’t pop open at all (and it leaks). The first times I noticed that it wasn’t sitting right because it hurt. But after the first tries I learned how to insert it so I wouldn't feel it anymore and even then the cup wouldn’t pop open. Maybe it’s the wrong folding technique for me? I ‘ve been using the C-fold method. The others seem difficult

Then the other problem is that the cup makes me burn. The burning stops a few hours after removing it and starts again around an hour or so after insertion. It was so bad that I had to stop using the cup. It's odd because I thought the material (silicone) was supposed to be nonreactive. I have never had any reactions to tampons or condoms so this is very unusual for me. Also I boiled the cup and washed it with soap before I used it.
Did anyone have similar problems or any tips? Thanks