It is something I suffer from frequently, and not just when relapsing. I now realise it was probably one of my first symptoms before diagnosis. All it takes is for me to touch my eye sometimes to set it off.
Sounds very much like you are experiencing a blepharospasm (abnormal twitching of the eye lid). It is a form of Dystonia which can occur in Multiple Sclerosis. Unfortunately, Dystonia is my overriding MS symptom, but mine affects my left arm, leg and torso.
The following NHS website is very helpful. Copy the following link to your browser.
Experiencing something similar over last few days but only periodically; area corresponding to the ‘bag’ under left eye twitching rapidly. Reminds me of Chief Inspector Dreyfuss (Herbert Lom) from The Pink Panther movies.