i believe that the best course for your condition once significnat trigerring has develpoed would be surgery...
It is a simple procedure with good chacnes of early and complete recovery if done by an experienced surgeon,
Since I am bsed in India I am unable to receommend anyone specifically in Manhattan, but ask around from your firineds and your primary care physicain for references,
You can read more
hereOther options may include splinting the hand, acupuncture may provide relief in the pain too, if done by experienced personnel,
read more
hereAll the best,
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Regards
Dr. Gupta