Premenstrual Syndrome (PMS) is a major problem for between 30 percent to 40 percent of menstruating women in the United States. Although in most cases symptoms are relatively mild, some women experience severe discomfort and pain. Symptoms of PMS range from headaches and cramping to depression and confusion. Remedies fill just as broad a spectrum. While for some women aspirin proves effective, others, in more severe cases, have turned to prescription...