Hi,
The commonest cause of such involuntary twitching above the
upper lip can be related to a condition called facial tics.
The usual cause is
anxiety and
stress.
it is better to get the clinical evalaution, examiantion and necessary investigations.
If the reports are normal then have consultation with a proper Doctor for
counselling, medications and further proper followup.
This is not serious but still needs evaluation of a
facial nerve, ENT Check up to see if everything is fine or not.
Proper medications can keep this well controlled.
Avoid stress and anxiety.
Keep yourself well hydrated and have proper electrolyte balance.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon