• Every subject in the study experienced decreased or resolved pain and reported a greater sense of well being.
• Scraping has provable anti-inflammatory and immune boosting effects - Yes, traditional medicine has known this forever and day. Read on to see the western perspective of why.
• It can reduce a fever and alter the course of an acute infectious illness, as well as reduce inflammatory symptoms in chronic illness. Again, traditional medicine already knew this.
• Okay, here is where we get to the oh so interesting why. Cruel studies on a mouse showed that scraping upregulates (meaning increases) gene expression for an enzyme that is an anti-oxidant and cytoprotectant (meaning a thing that protects the cells from harm), heme oxygenase-1 (HO-1), was present at multiple internal organ sites immediately after treatment and over a period of days following gua sha treatment.
(what that just said up there is that it causes an increase in an enzyme that protects cells, and this was found around many organs.)
• Also, this enzyme is anti-inflammatory and antioxidive - it can reduce allergic inflammation, AND it boosts immune response AND it relieves symptoms of Hepatitis B and C, AND it might heal internal organs AND it helps with all kinds of other nasty things like asthma, organ transplant rejection, inflammatory bowel disease and experimental autoimmune encephalomyelitis. No, I'm not saying that scraping is the new/ancient cure all. But it has been used for a lot more than muscle aches over the centuries.
• This is all in addition to all the stuff we already knew that scraping can do - Here is a nice list I made that combines things this article said, with stuff I already had on it from Thai medicine.
Releasing excess heat
Treating colds, flus and fevers
Treating many forms of headache including tension affected migraines
Dispersing stagnation
Releasing fascial restriction
Breaking down scar tissue
Reducing inflammation
Treating heatstroke
Relaxing bound muscles
Releasing adhesions
Releasing accumulated waste
Increasing circulation (400% increase in surface circulation of blood)
Releasing stuck wind
Reducing inflammatory symptoms in chronic illness
Scraping is done throughout southeast Asia and in northern Thailand you can find traditional doctors who specialize in it, complete with ceremony and incantations to boost the effect and protect the recipient. But scraping is also kitchen medicine. It's done by mothers to the children, and friends to friends.
Knowing Thai medical theory takes it from the realm of folk healing into more advanced therapy, and it is an amazing addition to any Thai bodywork practice. Personally it's a technique that I have a particular affinity for. Mostly I use porcelain soup spoons to do scraping, but you can see part of my collection of traditional tools in the photo below.