What is the most effective long term treatment for a pinched nerve in right arm? prednisone worked well for 3 months but getting recurring symptoms

Variable: Your description is too non-specific, as different nerve compression syndromes in an arm are treated in many different ways. Suggest you schedule Concierge appt, and we can get into far greater detail.

Varies : There are multiple treatment options. But if the oral steroid worked we for three months, you might want to consider a cortisone injection. Because the injection delivers the steroid right to the spot of the problem, it is much more likely to last long term.