My grandfather is 80 yrs old, his only problm is arthritis knee joint.what should be done to relieve arthritis pain other than medicines and surgery?

Arthritic knee Tx: Besides surgery and medicines, the remaining options include therapy, injections and bracing. Therapy helps the most. Injections, including cortisone type and hyaluronate, give temporizing relief. Knee sleeves can provide symptom relief. Assistive walking devices, like canes and walkers, can help with ambulation, but more importantly prevent falls.

Try: A ace wrap or neoprene sleeve and heal wedges.