I have trigger finger which was really painful and stuck several times a day and through the night. It’s improving a lot with some exercises that the physiotherapist suggested. When it’s not triggering and first thing in the morning I massage the joint at the bottom of the finger (often do it as I’m walking to the bus stop or shopping).
A few times a day I put my hand flat, palm down and gently pull the finger upward- not far, just to stretch it.
I also bend the finger one joint at a time- this is really hard to start with. First the lower joint, keeping the finger straight. Then relax the whole hand. Next the middle joint, bending it at a 90 degree angle, keeping the lower joint straight, relax the whole hand. Finally just the little top joint. I still find that almost impossible, not because it hurts, just because it’s hard 🙂 you need to do this with out using your other hand to help- apparently it’s something to do with voluntary movement of the muscles, not passive moving it.
Finally the best thing I did was the finger splint, but just in bed. I got a cheap one that was for keeping the whole finger straight, and wear it upside down because it’s the lower joint almost on your palm that needs to be kept straight, the joints further up, not so much as long as the lower one is straight.
This is the split I use upside down
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