Nervoderm contains the active ingredient lidocaine (lignocaine) that provides pain relief without the numbness. Nervoderm provides effective nerve pain relief from the shooting, stabbing, burning symptoms of medically diagnosed post-shingles nerve pain. Nervoderm can be worn during the day or at night for up to 12 hours, followed by 12 hours off. The easy to apply hydrogel patch forms a protective barrier providing a soothing effect at the site of application, which may be sensitive to touch, heat or cold. Can be used alone or in combination with other pain relieving tablets. For more detailed information on Nervoderm ask your pharmacist.