Once every three days. According to the information on the website, Qin gives three injections every three days, ten times for a course of treatment. Strange Three Needles is a classic work by Professor Hu Guang in China, which can be divided into three types: original odd three needles, standard odd three needles and variant odd three needles. Qin used "odd three needles" and "Shanwu decoction" by Mr. Zhu to treat TIC disorder and pediatric diseases, and achieved satisfactory results, with a cure rate of 90%.