Cinnamon is actually a spice which has been used medicinally by many cultures for 4000 years. It gives a deep internal warming and can help with problems arising from coldness, such as cold extremities, cramping, aches and pains from cold or flu onset, stiffness of muscles and joints and indigestion gas and loss of appetite. It also helps warming up and strengthening kidneys and liver. Cinnamon can be added to any tea; in most cases it improves the taste. Besides coldness, cinnamon has been proven to benefit Type 2 diabetes by reducing serum glucose and triglyceride levels and triggering the insulin cascade.

Cinnamon off the spice shelf is appropriate for general use. Check the labels. Some have preservative ingredients, most do not state botanical names, and most contain a blend of cinnamomum species. Spice cabinet cinnamon is fine for general use or to add to teas for warming up. For targeting medicinal purposes, purchasing whole cinnamon stick of a known species or prepared supplements is recommended.  

Bronchial constriction and skin rash may be the result of an allergic reaction. Start with very small amounts and gradually increase. It is not recommended to use if experiencing allergies to Peruvian balsam or when pregnant or lactating