Trigger finger, relief and cure?

Hello! I’m in my mid-40s and the trigger finger in both hands (3rd and 4th fingers) has really started impacting my daily life (also former pianist here). I’ve already gotten a cortisone shot in each hand, but the stiffness returns after about 3-6 months. Now I can’t even make a fist. For any of you that can relate, did you seek surgery? Is there any very skilled therapist that can help me get back to some normal functionality of my hands without surgery? Thank you!