Knee osteoarthritis (OA) is a progressive disease that can be accompanied by considerable
joint pain and dysfunction. It is a goal in the medical field to find effective treatments
for knee OA that are non-interventional, have minor or no negative side effects, and are
relatively easy to administer for the patient and health care professionals. Biofreeze, a
topical analgesic containing menthol, is an easily accessible gel, with no known serious
negative side effects. If the application of Biofreeze can reduce the pain and dysfunction
associated with knee OA, it could be an effective treatment for patients. The objective of
the study is to assess how 4 weeks of Biofreeze application to a knee affected by OA effects
pain and dysfunction associated with the disease.