Sometimes needles were used while they were still hot, creating a cauterizing effect at the injection site. 29 :104 Nine needles were recommended in the Chen chi Ta Cheng from 1601, which may have been because of an ancient Chinese belief that nine was a magic number. 29 :102-103 Other belief systems were based on the idea that the human body operated needling in the wrong place, or at the wrong time. 29 :102-103 Later, many needles were heated in boiling water, or in a flame. “Demystifying cupping in China.
The.needles.sed in acupuncture are regulated in the US by the Food and Drug Admin... [...]