If you are flared, put one of those thermacare wraps on your thoracic out let at the base of your neck before you go to bed and you will feel better in the morning. The wraps are expensive for everyday but I find they help with flares.
This is the one I find works the best:
http://www.thermacare.com/products-a...-shoulders.jsp
Sometimes you can find cheaper brands in dollar stores, discount chains, or drugstores in poorer areas.There is also a japanese product that is similar and cheaper but I have only seen it in stores that specialize in household products for japanese people.