Hi there, we're disappointed to hear about your experience and we hope that you're feeling better. Please know that the comfort and well-being of those who wear our products are our top priority. We also want you to know that all of our products are extensively tested and assessed by qualified safety experts are determined to be safe for intimate skin. We also don't expect the underwear to break open like you're describing and would love to learn more and help. When you have a moment, please give us a call at 1-877-413-3736 (Monday–Friday from 8am-5pm CST). Thank you and we hope to hear from you soon.