Drynaria is the most important herb in the Chinese pharmacopoeia for healing damaged bone and ligaments. It is used in all formulas for broken bones, torn ligaments. It is also useful in the treatment of and recovery from sprains, contusions (bruises) and stress fractures. Drynaria has been explored deeply by martial arts practitioners in Asia for over a thousand years and its efficacy is very well established. In fact, the literal name of the herb in Chinese is "Mender of Shattered Bones." Drynaria is usually used in combination with Dipsacus and other herbs to deal with the specific problems.

Drynaria can be used like all Yang Jing tonics to strengthen the lower back and knees. It seems to have special efficacy in a high percentage of cases of tinnitis (ringing in the ears) and bleeding gums. Though it is traditionally considered to be effective for toothaches, I recommend you get to the dentist and get the problem fixed.