Tarsal tunnel syndrome stems from entrapment of the tibial nerve under the flexor retinaculum of the ankle. In addition to numbness, burning and tingling on the inside of the foot and ankle, it's common to get pain on the bottom of the foot ( plantar fascia) as well, leading to this sometimes getting misdiagnosed as plantar fasciitis.
My go to for this is release of the retinaculum and tibial nerve using K-Laser and soft tissue release techniques and working on correcting foot/ankle motion and position.
I also address the entire sciatic nerve tract, of which the tibial nerve is part. Entrapment or pinching anywhere along the tract can make the tarsal tunnel more vulnerable.