I remember several posts of folks writing that MS feels as though a cell phone was swallowed while on continuous vibration mode. I had been introduced to a device called Transcutaneous Electric Nerve Stimulation after a car crash. Placed on the back corresponding to dermatome pathways, the electrodes stimulate nerves to contract and relax the surrounding muscle groups. It feels exactly like the pain experienced in MS damaged body areas. Not for people with pacemakers and should get doctor advise on how to use. Definitely do not place directly on head or neck.