Can anyone who knows something about sinus tarsi syndrome give me some thoughts on my situation? So I'm 29 with a flat left foot. I sprained it six years ago and often sit with it tucked under my leg. A few months ago, I started feeling a dull pain near my sinus tarsi that would last a couple seconds when starting any activity. It lasted a month until I started wearing custom orthotics and the problem quickly went away.
I was pain free for a few months until last week. That is when I started feeling a minor, but irritating tingling near my sinus tarsi that would last a couple seconds when starting any activity. Sometimes I can flex my foot while sitting and the tingling will come back. I've tried RICE, ibuprofen and an ankle brace for about 7 days without much change in symptoms. Of course I'm still wearing the orthotics. Does anyone have experience with this issue? How problematic is the tingling? Should I be taking more aggressive measures? What are my options?