Specific operation of scraping: The commonly used scraping points for treating diabetes are Zhongwan, Qihai, Pishu, Sanjiaoshu, Shenshu, Quchi, Hegu, Zusanli, Sanyinjiao, Shuishui, Guanyuan and Yangchi. The steps are as follows: (1) Scrape the three points of Quchi, Hegu and Yangchi of the upper limb slowly by the method of flat reinforcing and purging, and scrape the two points of Quchi and Hegu at the corner of the scraper until they are sore, swollen and fever, with slight eruption.

(2) Scraping Zusanli and Sanyinjiao points on the anterior and medial sides of lower limbs with complementary methods. It should be scraped to be swollen, hot and slightly chapped.

(3) Scrape the epigastric points and water points slowly. Stretch the cotton swab until it is sour, swollen, hot and slightly swollen.

(4) First, gently scrape Qi Hai and Guan Yuan points of the lower abdomen with the tonic method, and then scrape them with a little force until the acid swelling and heat have a slight eruption.

(5) First scrape Dazhui point on the back and Shu Fei, Ganshu, Pishu, Shenshu, Sanjiaoshu and Mingmen points on the bladder meridian on both sides with a tonic method, and then scrape these points with a little force until they are red and hot.