@maggie76 - I take Nervive and it has made a major difference between getting a good night's sleep and waking up with terribly burning feet during the night. It is not a prescription and is not expensive. Key Ingredients: Lidocaine 4% and Menthol 1%. Lidocaine works as a local anesthetic by physically blocking the sodium channels in your skin's pain fibers, temporarily numbing the local signals. The menthol creates a cooling counter-sensation that essentially distracts the brain from the underlying pain.