What could I do to reduce the pain of arthritis?

Anti-inflammatories. Much depends on what joint is affected by the arthritis. If it is your hand, anti-inflammatories (ibuprofen, naprosyn, (naproxen) etc) would be a good first line treatment, an splinting and cortisone are helpful as well. If it is your knee or hip, weight loss is often the #1 thing that can help with arthritis pain. If you are skinny, though, i suggest anti-inflammatories, cortisone and activity modification.