Arthritis is a general term; need narrow down for useful advice on managing symptoms.

Two most common types are osteoarthritis (wear-and-tear associated with aging and/or injuries) and rheumatoid arthritis (autoimmune).

I only know about age-related knee osteoarthritis to try to help my mom manage her symptoms, so I'll share my understanding of treating that.

High ROI, low cost: - weight management. Extra lbs are extra stress on the knees, plus I suspect chronic inflammation associated with being overweight can exacerbate arthritis independent of mechanical stress. - exercise, specifically low impact cardio and any pain-free strength/hypertrophy work targeting the musculature around the knees (mainly quads).

Variable ROI, low cost: - NSAIDs, specifically topical to focus on treatment area and reduce impact on GI system/kidneys. - curcumin, mixed evidence but some people report benefits.

Variable ROI, high cost: - PRP injections. Apparently the quality on these varies dramatically by provider. Would recommend doing research and comparing multiple providers if possible. - Knee replacement. Far from a panacea; you'll lose range of motion forever, plus plenty of other trade-offs. Most people recommend putting this off for as long as possible.

Also interesting is low dose radiation treatment for knee OA. More affordable than other procedures and has some promising research.

Not much else on the novel treatment front that I've found. Curious if anyone thinks I've missed anything worthwhile.