As an infusion tea, chamomile has antianxiety, invigorating and antiseptic properties. It can be used to treat stress and insomnia. Chamomile tea has also been found to relieve menstrual cramps. Researchers of the Imperial College of London isolated compounds, which show that chamomile helps fight colds and acts as a muscle relaxant. The former effect is due to the anti-inflammatory properties of hippuric acid while glycine is responsible for reducing muscle spasms and pains.  Chamomile is also used as an ointment for skin diseases due to its antimicrobial properties.