Guasha  (pronounced "gwa-shah") is an integral part of acupuncture 
and TCM-related techniques, a scraping therapy, allowing Qi and blood 
to flow through the body. Gua means to scrape and Sha means redness. 
The techniques involve the use of instruments to apply pressure or scrape
the skin along the meridians to promote normal circulation and metabolic
​processes. During a treatment, a special Chinese herbal oil is applied to the skin. This oil is used to protect the skin.The tool used in Guasha is called a scraper. This tool is usually made of jade because it conducts the energy (Qi) well. During the scraping spots,  the places may appear to have bruises where Qi blockages are in the body. These bruises can vary from red to deep red. The darker colours indicate the deeper blockage and often this means there is more chronic disorder. The red spots disappear completely within 3 to 7 days in a normal condition. Drink plenty of water after a Guasha treatment, on the day of treatment and the day after, it is important to drain the waste from the bladder and kidneys.Gua Sha is used whenever a patient has pain associated with an acute or chronic disorder.  In addition to resolving musculoskeletal pain, it also prevents common cold, flu, bronchitis, asthma, and any chronic disorder involving pain, congestion of Qi and blood.In modern medical concept the fluids contain metabolic waste that congested the surface tissues and muscles. Guasha is aimed at removing wastes from our body to establish a better flow of Qi and blood  and to  promote circulation and harmonize metabolic processes.Some study shows that the Guasha  increases surface microperfusion, anti-inflammatory and immune stimulation properties which will lead to better health.