Knee cold is a misery that only the patients themselves know because no a doctor or a hospital under your medical system considers it as a illness, yet in Chinese medical system it is a typical disease called cold qi hovring your body. I've never seen a single one who suffered the disease recovered. As most of chronic disease it is incuable in your medical system, no drug, no equipment, on doctor, no hospital, no a way of any...But I've completely healed thousands of patients using the Chinese Qigong Self-practice program in healing the disease. And it's simple to learn. Everybody can follow the practice just by following my 5 miutes video. You will difinitely totally recover.