Get up, physician; do not give me this headache. Work, or finally, the planning has been useful.

This profound couplet speaks to the realization that over-planning and excessive preparation are useless once the main event has occurred. The poet, addressing a doctor, asks him to stop fussing over superficial details (the hair). The core message is that when the 'work' is finally done, all the intricate strategies and careful plans become meaningless. It's a universal lesson on acceptance and the pointlessness of worrying about things that are already settled.