This should also provide PenisHealthLife.net long term pain relief. Other medications such as antidepressants and anticonvulsants have been found to help relieve pain caused by nerve injuries. Other types of treatment include: Use of TENS(transcutaneous electrical nerve stimulation) unit. Electrodes are placed on 2-3 painful areas of the back and attached to a unit that provides mild electrical stimulus to the area in order to relieve pain.