C-section scar stings

Jam

Hi. I'm 22 months postpartum and out of nowhere my scar started stinging. I suspect it's because I recently started going to yoga class 5x a week and maybe rubbing against clothing affected it. Has anyone else experienced this months/years after giving birth? What's a good solution? I wear yoga pants pretty much exclusively so the idea that they're the culprit is a hassle!