Obviously, you need to seek medical advice to make sure something worse isn't wrong with your finger, they'll probably put your finger in a splint anyway, saving you some filament and giving you some peace of mind.
Designed to hold a piece of 12mm wide hook and loop cable tie, some holes allow for sweat and water to drain so it doesn't get waterlogged. The different files have different angles to facilitate different sized fingers, if you need more custom the FreeCAD file is there and is fairly easy to modify to change dimensions, I didn't create a spreadsheet but it's just 2 sketches.
I fried my Duet 3 right after printing my first prototype so I've been stuck using an old version since then, hopefully soon I can print the new version and be sure it's actually decent and get this crappy one off, as such I only have a photo of the old version.
Go to a doctor, this print isn't one. If your finger falls off after using this I take no responsibility.
The author marked this model as their own original creation.