is a common ingredient in many products such as toothpaste, mouthwash, perfume, soap, lipstick, chewing gum, cough syrup, nasal sprays, and cola drinks. A popular food flavoring, it is valued as one of the world's most important spices. It is also valuable in the treatment of various ailments. Modern herbalists prescribe cinnamon bark as a remedy for nausea, vomiting, diarrhea, and indigestion. Chinese herbalists recommend it for asthma brought on by cold, some digestive problems, backache, and menstrual problems.