Great for warming pain relief, Zheng Gu Shui may be used for the relief of aches and pains of muscles and joints associated with backache, lumbago, strains, bruises, sprains, and arthritic or rheumatic pain, pain of tendons and ligaments. May be used 3 to 4 times daily but should not be used on irritated or damaged skin. For external use only. Available in a 1 fl. oz and 3.4 oz liquid sizes.