My left eyelid keeps twitching (spasms). it's been happening for a week now. what should i do?

Lid myokymia: Eyelid twitching/myokymia can be due to dry eyes (tears do not stay on eye as they should & cause a perceived sense of dryness of eye; meibomian glands may be clogged for instance), stress, caffeine intake, lack of sleep; use can be treated with tears; botox (more common) or steroid injections; if symptoms are associated with twitching of whole side of face consult MD to discuss further treatment