I'm a classical guitar diploma teacher and I have suffered from tendonitis in the back of my left hand for nearly 2 years destroying my performances.
I want to report that I have finally found the cure.
Along the way, I heard garbage from all idiots about one-off treatments, tablets, prolotherapy (wth is that?)poor technique etc.
I can tell you, that I visited hand surgeon in Wellington Hospital, GPs, Guitar performers at Royal acadamey but all failed and my technique is fine.
I did learn from the surgeon that Tendonitis is usually not an injury, it's inflammation due to over use and lack of sufficient oils and poor blood flow to tendons- like a car engine without enough oils. Engines fine but it sure will be cranky without oil.
Treatment? Cortesone is fine for a temp solution but I fail to see the logic in a problem caused by extended momentum and re-use, being solved by a one-off injection - YES I had 2 myself, helped for 3 months but then it came back.
Answer: Icing helps as it compresses the tendon and forces in new blood flow (see online tendonitis expert for more on this - google it) but crucially - check out TIGER BALM or other chinese oil balms such as wood lock. Before you comment - I have no connection to it financially whatsoever.
I'm amazed and over the moon now.
It's an oil producing heat balm - PERFECT for tendonitis which needs the heat to encourage blood flow and oils to solve the friction problem.
All I can say is I have been cured. I was even able to play when I started using the balm and it still started to reduce the inflammation until it left me completely.
Trust me when I say this - it's amazing stuff and check out other users on-line it as it really works.
My gosh I sound like those marketing posts.
So advice is Ice and balm - I do this 2-3 times a day and indefinitely (whilst you are playing of course)
I for one am playing pain free.
Good luck all.