Gable any of the edible herbs can be used in tea or salad. Just do your research on the ones you are interested in and check that it is safe for you personally.
Coriander is really good for easing arthritis pain because it blocks the chemical that causes the pain. In other types of pain it helps by bringing blood to the area it is applied to. You can drink it as a tea as well. It is a good substitute for people who are sensitive to cayenne pepper which can burn the skin when applied topically.