Sage

Sage (Salvia Officinalis) has two main uses. It has anti-bacterial and anti-viral properties (due to the presence of diterpenes) which, along with it's astringent and mucous busting properties (due to the presence of thujone), make it an ideal gargle for mouth and throat infections such as tonsilitis. Sage also contains estrogen-like substances which, with it's ability to stem perspiration, make it a perfect herb for treating menopause.

Reference

Bone, K (2007) The Ultimate Herbal Compendium: A Desktop Guide for Herbal Prescribers. Phytotherapy Press: Warwick. 

Pengelly, A (2004) The Constituents of Medicinal Plants. CABI Publishing: Washington.

Wiess, R.F. (2001) Weiss’s Herbal Medicine: Classic Edition. Thieme: New York