A good thing to do would be relaxing in a very quiet room without any lights on. The medication will also work under minimum pressure because of the relaxing mood. Another way is to avoid thinking too much and massaging it gently using the tip of your fingers.
Best thing to do is turn off all the lights, lay down in the quiet, and relax. It will eventually go away. If not a heard that if you put two tennis balls in a sock and lay your neck onto them, it relieves some of the tension and rids the ache. Good luck.