Rosemary is warming and antibacterial. It increases circulation to the skin and promote sweating and thus is a good remedy for fevers and congestion in sinus, colds, asthma, and bronchitis.
By increasing the flow of blood to the head, rosemary stimulates the brain and heightens concentration, and may prevent and relieve migraine headaches.
Rosemary also stimulates digestion and relieve bloating and flatulence.