Sage (Salvia officinalis) has a long tradition of medicinal use. Researches has shown that sage can help reduce excessive perspiration, digestive problems, sore throats, premenstrual cramps, and high blood sugar.
Sage can reduce perspiration by as much as 50 percent so it can be used to treat excessive perspiration.
Sage has traditionally been used to promote menstruation, and there are some studies that indicate it may indeed help stimulate uterine contractions
Sage is also an active ingredient in some natural mouthwashes because its tannins are thought to help kill the bacteria that cause gingivitis. Sage has traditionally been used to treat canker sores, bleeding gums, sore throat, tonsillitis, and laryngitis. Recent laboratory studies support the use of sage to guard against infections - it has demonstrated an ability to fight against several infection-causing bacteria.
Sage has a long history of use as a treatment for gastrointestinal disorders. It has been shown to help relax muscle spasms in the digestive tract, and is suitable for treatment of indigestion.