Sage has one of the longest histories of use of any culinary or medicinal herb. It was used by herbalists externally to treat sprains, swelling, ulcers, and bleeding. Internally, a tea made from sage leaves has had a long history of use to treat sore throats and coughs. It was also used by herbalists for rheumatism, excessive menstrual bleeding, and to dry up a mother’s milk when nursing was stopped. It was particularly noted for strengthening the nervous system, improving memory, and sharpening the senses.
Sage is known as a valuable agent in the delirium of fevers and in the nervous excitement frequently accompanying brain and nervous diseases. It has a considerable reputation as a remedy, given in small and often-repeated doses. It is highly serviceable as a stimulant tonic in debility of the stomach and nervous system and weakness of digestion generally. It was for this reason that the Chinese valued it, giving it preference to their own tea. It is considered a useful medicine in typhoid fever and beneficial in biliousness and liver complaints, kidney troubles, haemorrhage from the lungs or stomach, for colds in the head as well as sore throat, quinsy, measles, for pains in the joints, lethargy and palsy. It has been used to check excessive perspiration in phthisis cases, and is useful as an emmenagogue.
It is also known to be an anti-inflammatory, antiseptic and antibacterial, to help reduce muscle tension, relieves indigestion, as a relaxant, to reduces menopausal symptoms and to Improve memory.