Most often you'll find the cayenne pepper being used as a cream, lotion or salve to treat problems like arthritis, shingles, joint and muscle pain related to fibromyalgia. It has also been shown to ease the pain of cluster headaches, improve circulation and relieve heartburn when taken orally. For nerve pain, apply a cream that contains about 0.075% capsaicin 3-4 times per day. You can also treat arthritis type pain by applying a cream with a concentration of about 0.025% 4 times a day. Often times it may take 6 to 8 weeks to see the results of cayenne begin to work, but just be patient and it will work. Capsules can also be found containing cayenne and are a great way to orally take your cayenne. In some cases cayenne pepper has also been know to decrease appetite and burn calories although this is probably only a small effect overall.
Another well know spice in the kitchen cinnamon is also known for it's medicinal properties. While not really an herb I still think it's important to list it in our list of herbs and their uses. Cinnamon actually comes from the inner bark of a tree in the laurel family. It's been used for centuries and was a hot commodity for trade in ancient times. In fact during the first century A.D. in Rome cinnamon was 15 times more expensive than silver. The Chinese were probably the first to use cinnamon as a medicinal herb and used it to treat fevers, and diarrhea. In more modern times cinnamon has been found to stabilize blood sugar levels in diabetics, as it has an insulin kind of effect.