together with needles treatment, one can also apply any remedy/drug including anaestetics, into the circle to treat the damaged area without actual contact with it, which can be critical for bad cases. This can be valuable in case one can't tolerate any more of general anaestetics due to
kidneys/liver/body systems already overloaded by drugs treatement.
Also, several posts on Chi-Gong strengthening methods for organs/systems in a blog for singers and musicians:
Treatment of severe burns is demanding and challenging task.