(1) Drain wind and heat: Through its function of venting wind and heat, it can achieve the purpose of relieving symptoms, clearing heat, penetrating evil and detoxifying, and is used to treat external wind-heat and measles, urticaria, rubella, pharyngitis belonging to external wind-heat. For example, the elevation and declination of the cicada retreat and the stiff silkworm, the fast penetration of the powder, the ginseng penetration of the muscle powder, the large forsythia drink, etc. use the cicada moth to treat the warm evil and acne rash, attacking its inability to penetrate; “the standard rules of evidence and treatment” use the stiff silkworm to treat the liver meridian headache; “the secret collection of throat” six flavor soup with the stiff silkworm with peppermint, orris, licorice, etc. to treat sore throat at the beginning of wind-heat external sensation. (2) Detoxification and elimination of carbuncles: Through its good detoxification and elimination of swelling, pus and decay, it can achieve the purpose of detoxification and elimination of carbuncles, and is used to treat carbuncles and furuncles and nameless swelling and poison. For example, in “Zhi Zhi Fang”, the centipede is used to remove pus from carbuncles and gangrene; in “Tan Liu Fang”, the whole scorpion and gardenia are decocted in sesame oil and yellow wax is used as a paste to treat all sores and swellings; in “Shuo Shuang Fang”, the cricket is used to treat rotten sores on the shins; in “Buzui Liang Fang”, the centipede is applied externally with stigmaster’s yellow to treat malignant sores; in “Yao Xie Qie Qisui”, the centipede, cicada and whole scorpion are used to treat carbuncles and gangrene boils; in “Ji De Sheng Snake Poison”, the centipede is used to treat poisonous snakes and insect bites. (3) Quenching the wind and calming the panic: Through its harsh wind-seeking and antispasmodic effect, it can achieve the purpose of quenching the wind and calming the panic. For example, “Paediatrics Standard” uses scorpion tail to treat epilepsy; “Spasm Stopper” uses centipede and whole scorpion to treat convulsions; “Epilepsy Pill” uses whole scorpion and stiff silkworm to treat epilepsy; “Jin Nan Shi? The “Quan Si family recipe” five tigers chasing the wind with cicada, scorpion and silkworm to treat tetanus; handful of wind to the silkworm, scorpion, centipede, etc. to treat shock, tetanus, spasms and convulsions, mouth silence, corns and other symptoms. Modern pharmacological research has shown that whole scorpion, centipede, dendrobium and silkworm have anticonvulsant effects. (4) Searching for wind and clearing the ligaments: Through its harsh and fierce effect of searching for wind and relieving pain, it can treat various pains caused by wind in the meridians. For example, Xu Shuyi used whole scorpion and Di Long to treat the pain of all the wind in Bai Hu; Ye Tianshi used whole scorpion, beehive and Di Long to treat the paralysis of Zhou; Wu Ling Wan used Wu Ling Lipid to treat the pain of wind in all the joints in Miscellaneous Diseases Source and Flow Rhinocandle; Zhao Xiwu used whole scorpion and centipede to treat trigeminal neuralgia. (5) Kill insects and relieve itch: Through its effect of removing wind, detoxifying and killing insects, it is used to treat all kinds of skin diseases such as ringworm and itch. For example, Tribulus terrestris and Bitter Ginseng Pill, Shuji Tribulus Pill and Soufeng San use centipede, whole scorpion and ground dragon to treat leprosy; Zhao Bingnan’s whole worm formula uses whole scorpion and centipede to treat stubborn eczema; in modern times, cicada molts and snake molts are also commonly used to treat various kinds of scabies, itching and other skin diseases. Pharmacological studies have proved that cicada molts and snake molts have sedative and anti-allergic effects. (6) Expectorant and asthma: It is used to treat cough and asthma through the effect of expectorant and cough relief, antispasmodic and asthma. For example, grasshoppers are used in folk prescriptions to stop coughing and spasm, nine dragon worms are used to pass through the meridians and calm asthma, and single centipede and licorice are used in the treatment of whooping cough by powdering. Modern pharmacological research has proved that Diodon and Stachybotrys have the effect of relieving bronchial spasm, and the protein contained in Stachybotrys has the effect of stimulating the adrenal cortex, which is commonly used in the treatment of bronchial asthma, cough variant asthma and wheezing bronchitis. (7) Promoting qi and relieving pain: With its effect of promoting qi and dispersing stagnation, activating blood circulation and resolving stasis, it can achieve the purpose of promoting qi and relieving pain, resolving stasis and dispersing nodules, and is used to treat all kinds of pain and stasis caused by qi stagnation and blood stasis. For example, it is used in the treatment of heart and abdominal colic caused by stagnation of Qi and blood, and in the treatment of liver pain caused by Qi stagnation in Wu Long Wan. Modern pharmacological research reports that wuling fat has the effect of relieving smooth muscle spasm, so it has good pain relief effect. (8) Invigorate blood circulation and dispel blood stasis: It is used to treat various kinds of lumps by its effect of pushing the blood into the new and achieving the purpose of invigorating blood circulation and dispelling blood stasis. For example, Rhubarb and Shu Worm Pill uses Shu Worm to treat internal stagnation of blood stasis and the accumulation of lumps in Y obstruction; Lower Blood Stasis Tang uses Shu Worm to treat dry blood in the abdomen of women in labor; Jiedang Tang uses leech and Shu Worm to treat the accumulation of blood in the lining of fever; Wenzhi Zhuanzhi Shu Sheng Dan uses leech, gadfly and Wu Lingli for the treatment of Y knot, blood paralysis, malaria mother, women with menorrhagia and dry blood labor. (9) Attacking and breaking down accumulation: With its ability to break down stasis, it can achieve the purpose of attacking and breaking down accumulation and is used to treat various types of Y obstruction. For example, turtle nail decoction pills are used to treat malaria mothers with dung beetles and dung beetles; spiders are used to treat fox hernia with spiders. For example, in the “Prepared Emergency Thousand Gold Essential Formula”, Niu Knee Pill is used to treat the accumulation of Y obstruction by using the common worm, grub, cockroach, gadfly and leech. Modern pharmacological research has proved that Zanthoxylum, Bombyx mori, Scorpion, Gecko, Centipede, Toadstool and Leech all have anti-cancer effects and can be used for all kinds of cancer, with the functions of clearing heat and detoxifying, relieving swelling and pain, breaking up blood stasis and dispersing nodules. (10) Warming kidney and strengthening yang: Through its effect of warming kidney yang and nourishing the vital gate and strengthening yang dao, it can achieve the purpose of treating impotence, urine loss and urinary incontinence. For example, spider bee pills use flower spiders and beehives to treat impotence; beehives are used to treat enuresis and urinary incontinence. The “Thousand Gold Formula” uses beehives to treat impotence by burning ashes and applying them to the pubic area at night; and the “Hyperimpotence Spirit” uses centipedes to treat impotence. Some worm medicines are poisonous and have violent effects, so they should be prohibited for the elderly, pregnant women, children and weak people; some worm medicines are pungent, warm, dry and easy to injure fluids, so they should be used with caution or in combination with yin medicines for people with yin deficiency, yang hyperactivity, blood deficiency and spasm.