There are many illnesses that can affect your bowel, but one of the most common is irritable bowel syndrome (IBS). Despite being relatively common, many things, such as the cause of IBS and the best treatment, remains unknown. While the exact cause is unknown, many patients who have additional health problems, such as fibromyalgia, chronic fatigue syndrome, and chronic headaches and backaches, are at a higher risk of developing the illness. Because of this, many researchers believe that the onset of the condition may be related to stress, the immune system, or infections. This theory is based on the fact that stress can lower the immune system, putting patients at a higher risk of infection, thus causing IBS. Many doctors theorize this because the antibiotic Rifaximin has been shown to be