So last month (last cycle) was the first time I used Yukki cups. Was not uncomfortable. After my cycle ended I had very heavy discharge with some significant spotting in there. I wondered if it was a result of the cup but chalked it up to normal discharge/spotting. While washing my Yukki cup this morning preparing it for my cycle that might come possibly today I realized there is a decent edge or seam on the rim of the cup that lines your vagina. Ouch! 1. Do you think that is what caused my spotting? 2. What's the best way to get rid of that sharp seam?