ओंठ चिमोट्ने विधी:

One enthusiastic nonscientific recommendation has been to firmly pinch the tissues above the lip, just under the nose, and hold the pinch until the cramp stops (said to be within 15 minutes.) Of course, why this might be effective is uncertain, and no scientific study of this technique has been reported.

http://www.medicinenet.com/muscle_cramps/page5.htm