I managed to do the stupid failure - after too strenuous handstand training session, I got tendon pain in my right arm, quite distinctly only affecting the exact area that is put under stress in handstanding. Now it's been three months and it's still not completely healed.
Not sure if there are any good methods of speeding up the healing, so far I've just let it rest, doing some really easy antagonist work with rubberbands around my fingers that offers resistance for "opening the fingers". I guess rice bucket would be another possibility. I've also taken a short anti-inflammatory medication tablet run, which really helped and advanced the healing.
Just wanted to mention that take it easy, don't push yourself too much and remember especially in something as strenous as handstanding that you really have to take the time to progress slowly.
I really do hope I don't need another one of these to learn my lesson... *sigh* Oh well, luckily it doesn't affect my normal life in any way, but still feels stupid ![]()