HEEELP finger injury

[chicoscalco]

Here I am typing with my left hand. I think I over-articulated my index finger practicing Bach, and now unless I am absolutely relaxed using no strength whatsoever my wrist hurts. Not exactly my wrist, but the extension of your finger. Dunno how you call that in english, "tendon" ? Problem is, I have a recital to do in two weeks, and I have to practice like crazy. This is my first injury, and my next class will be thursday. Until then, what do you guys recommend doing?

PS: I spent the whole afternoon reading through Ravel's left hand concerto 

[cometear]

I want you to know that no matter what you do you will always experience pain when using that finger unless you repair your technique. I would recommend the Taubman Approach.

[pianoplunker]

Here I am typing with my left hand. I think I over-articulated my index finger practicing Bach, and now unless I am absolutely relaxed using no strength whatsoever my wrist hurts. Not exactly my wrist, but the extension of your finger. Dunno how you call that in english, "tendon" ? Problem is, I have a recital to do in two weeks, and I have to practice like crazy. This is my first injury, and my next class will be thursday. Until then, what do you guys recommend doing?

PS: I spent the whole afternoon reading through Ravel's left hand concerto 

I would recommend seeing a medical professional first and foremost. Until then get some big thick winter gloves, the kind that actually keep your wrist supported even while relaxed. They serve to keep your hand warm as well as in a good supported position Unfortunately that excludes using your affected hand until it feels better, and then you may need to gradually use it. I dont know how bad your condition is but two weeks is very quick to recover from tendon type of injuries.

[chicoscalco]

Ok maybe I exaggerated a bit 
I am typing with both hands now, I was only typing with one because I was applying ice on my injured hand. I thank you for the responses and about the tips, but I'm not particularly interested in a piano method.
Do you think stretching is helpful or it's best to leave it resting? And aren't we supposed to keep the hand cold to avoid  infection?