Earth Dragon, I did say “90%” 
Skarbro, there are internal forms of Jow.
Tieh Tah Yao Gin comes to mind. These need to be takenon the advice of a qualified TCM physician and not on the advice of anyone else.
Unless of course, if you sifu is also a healer, in which case the use of them may be necessary.
Generally, internal jows contain some pretty vile tasting stuff but they are excellent for things such as bruised or affected organs that have suffered strikes. As well for deeper tissue damage taht cannot be fully effected by topical substances.
There are also a great variety fo teas and deconcoction herbal mixtures that have much efficacy and effectiveness.
Just be as aware as possible before putting anything into yourself. If this means sourcing a few instances then do the footwork. Better a little pain for a few days than extended damage for the duration of your days.
These days, it is quite trendy for people to recommend things that may have worked for them. But the deal with TCM is counters that thinkingfrom the start. Everyone is different in habits and everyone is therefore different in dosages and needs as far as herbal remedy is concerned. Any TCM prac worth their salt will develop a very close relationship with you and ask you a gagillion questions before they give you a single thing.
Be honest in your replies to the Dr. If you have bad habits tell the Dr. these habits may counter the prescription in many incidences.
Western medicine, at least preventitive western medicine lacks this aspect. It is thought that the efficacy of western drugs is the same from one person to the next and in a few cases that is true, but in many cases it is not.
Anyway, be careful with any internally taken herbs, do your homework to the nth possible degree and avoid just taking someones word for it no matter how much paper hangs on the walls.
Acute is one thing, Chronic is another.
peace
Kung Lek
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