Some time a twitching sensation near my right ear..in past 3 days..do i need to consult with doctor?

Unlikely: Isolated muscle twitches rarely indicate anything serious. More likely it is from overuse of the muscle (chewing gum, or other such thing). I would give it some time to see if it resolves on its own. If you develop more symptoms (more widespread muscle issues, changes in hearing, numbness, or other changes), then I would go in to be evaluated.