Botox for forehead...?

I don't have wrinkles or lines in my forehead, but when I was having trigger point therapy done (mage), my therapist said that I was holding all my stress in my forehead. I would grimace and scowl without even knowing it. And I have pressure constantly across my forehead area from that. I find when i consciously relax my brow area it feels like I'm releasing tension. Would botox help relax this area so I wouldnt carry my stress there so much?