Treatment programs commonly involve nonpharmacological and pharmacological measures. If pain becomes debilitating, joint replacement surgery is to be used to ameliorate the quality of life.10 Generally, exercise and lifestyle modification are considered nonpharmacological measures,11 and analgesics are prescribed to relieve pain. However, there is increasing concern that some analgesics may cause serious complications. For instance, some cyclooxygenase-2 (COX-2) inhibitors such as nonsteroidal anti-inflammatory drugs have been shown to increase the risk of adverse cardiovascular and gastrointestinal events.12 Moreover, findings of two in vitro studies demonstrated that naproxen, indomethacin, and ibuprofen, which are the most frequently prescribed nonsteroidal anti-inflammatory drugs, block the synthesis of human cartilage matrix, and this is likely to increase the rate of degeneration of articular cartilage in OA. 13 and 14 This has led many researchers to attempt to find a remedy or modalities with negligible side effects and significant improvement in the symptoms.15 Ginger (生薑 shēng jiāng) is an underground rhizome of the plant Zingiber officinale, belonging to the family Zingiberaceae, which is one of the most popular herbs used in traditional medicine to remedy diseases such as pregnancy-induced nausea and vomiting, motion sickness, and arthritic conditions. It is thought that ginger might be useful to human health owing to its anti-inflammatory properties. The mechanism of its action is not clear, but it seems to inhibit the activation of tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), and inducible nitric oxide synthase (iNOS). 16