The purpose of the research is to evaluate the effectiveness of using two common drugs together to reduce chronic pain specifically in patients with fibromyalgia. These two drugs are minocycline and N-acetylcysteine . Minocycline is an antibiotic, and N-acetylcysteine is a supplement that can reduce cell damage. Minocycline and N-acetylcysteine are not FDA approved for chronic pain but have been proven in animal studies to interact with important cells in the body that play a major role in the development of chronic pain.