Can you tell us what is being injected? I would like to know.
There is a study ongoing with hyaluronic acid injections into the ankle. Other things injected, long acting steroids or lidocaine.
Most of the pre-workout products contain arginine (or citrulline) to improve NO in the blood vessels. Other aminos might be there too..like glutamine.
I wonder if you are having a form of prolotherapy? This is when an irritating substance is injected into a joint, to stimulate healing.
It is less common today because of negative consequences for some patients.
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Weezie looking at petunias 8.25.2017
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