Devil's Claw Devil’s claw is a perennial shrub that grows wild in the desert countries of Southern Africa. It has a long history as a healing herb in its native land, used in remedies to treat pain, digestive complaints, migraine and fever as well as rheumatic pain. Research shows that this herb can help relieve pain and in some cases improve mobility in people suffering from osteoarthritis or degenerative rheumatism. Active compounds found in the plant appear to have anti-inflammatory properties. Devil’s claw can be found in the product FlexiHerb: traditionally used for back pain, rheumatic pain, joint pain and muscular pain.