Are you getting the "Trigger Finger".
Where the Digit Locks and after a Forceful Release you get a Snap.
My Mom had this for many years, she would get the Injections and that would help for about 6 months.
She also Wore a Brace when it was bad and to Sleep with so if she Accidentally rolled onto that hand, she had some support.
Unfortunately, besides Nsaids/Shots/and Bracing, there's nothing new that I'm aware of for this problem......................... JP
P.S.
The Graston Technique may offer some relief, it cured my Tendonitis of the Elbow.
www.grastontechnique.com/file/sites%7C*%7C86%7C*%7CEDGE-Archives%7C*%7CDCs%7C*%7CThe-Conservative-Treatment-of-Trigger-Thumb-Using-GT.pd
www.youtube.com/watch?v=cdm4_n-rm9k
Post Edit:
Not sure if the 1st Link is working, here's another Article with Pictures at the bottom for Active Release with Graston Technique.
www.ncbi.nlm.nih.gov/pmc/articles/PMC1864591/