Tension never helps anyone. But sometimes the stuff they give you for it is worse. If don't have tourettes (in which case, there isn't always something they can do about it)....try meditation. No, I have not lost my tiny mind. I used to have some terrible ticks. Then, one day, sitting on a train platform in Aux Les Bans (France) my wife said, put that tick on a train going the other way, and get rid of it. I can't figure out why those were magic words, but it worked. And that was 20 years ago.
And that facial tick had been with me for 30 years.
As I say, if it's tourettes, that probably won't work. But if it's nerves, there are other things that will take down the tension....I don't mean drugs......I'm serious. Meditation. 15 minutes of complete relaxation lying flat on the floor and totally relaxing your muscles. Think about NOTHING. It'll all be there in 15 minutes when you get up, but for those 15 minutes, it's your time. Just you. Try not to move a muscle. NO don't stop breathing. Deep long breaths. No thinking allowed. Shut everything out. Preferably at night in a dark room on the floor.
Think I'm finally lost my mind?
So do I, but it works.
btdt