one is better than none! Aches and pains may be a part of life but when it interferes with fishing.... well something has to be done! From my own personal experiance some stuff called Voltaren works wonders on such pain. It is not often I will recommend meds but I use it on my neck, shoulders, knees, back, hands. most any place that gives us older folk trouble.
No guarantee it will make you catch more but you might feel better even when not catching!