I had a severe pain in my neck (cervical spondylosis) for 2 years radiating to my arms and head. At a point, I started getting black outs and random head tingling, driving me crazy. I consulted an Ayurvedic doctor & applied a medicated oil with daily sun exposure for an hour. The pain became manageable after 6 months. I have a livable/bearable pain for the last 10 years - but it no longer bothers me much. The oil saved my mind. I can share more details if anyone is interested (email in profile).