When you first get your braces on, your teeth will hurt for a few days, as they will every time you get your braces tightened or your wires changed.
Always follow the recommended dosage and check with your doctor first if you are taking other medication. Kava kava (piper methysticum). The effectiveness of Kava in anxiety conditions has been proven in clinical studies. It appears from research that it may have a directly soothing effect on the amygdala (the main part of the brain involved in the fear response) and this makes it a particularly useful herb for anxiety problems.
Herbs for anxiety and stress relief are commonly available in grocery and health food stores as single herbs or combination remedies. You can use them in a variety of ways based on your needs and interests. Feel free to experiment and see what works best for you. If a cup of relaxing tea is for you, look for names such as Tension Tamer by Celestial Seasonings or Kava Stress Relief by Yogi Teas (one of my favorites for nervousness in social settings). Or make your own brew from loose herbs. Slowing down to make a pot of tea is very relaxing and centering in and of itself.