Joint FLX Except the above substances research and studies have confirmed that the satisfactory solution for sciatic nerve ache alleviation have to additionally comprise a few extraordinary natural ingredients in suitable portions. As an example it's far critical to have the portions in proper quantities particularly when it comes to menthol. Menthol is determined in maximum of the ache relieving ointments. But the extra amount of menthol ends in burning of pores and skin.