Stiff silkworms are used for relieving wind and spasm, dispelling wind and relieving pain (dissipating wind evils and relieving pain in the muscles and bones), and resolving phlegm and dispersing knots. It is used in the treatment of liver wind with phlegm, convulsions of epilepsy, acute fright of children, tetanus, wind and mouth awry, wind-heat headache, eye redness and sore throat, and itching of rubella. Stiff silkworm is a kind of traditional Chinese medicine, flavor salty, pungent, flat, belonging to the lung, stomach, liver meridian. It has the effect of restraining wind and stopping spasm, dispelling wind and relieving pain, resolving phlegm and dispersing knots. Clinically, it is often used in the treatment of liver wind and phlegm, epilepsy and convulsions, pediatric acute fright, tetanus, wind and mouth awry, wind-heat headache, eye redness and sore throat, rubella and itching. Adverse effects are not clear at the moment, and caution should be taken for those who have blood deficiency and convulsions (pediatric diseases with dizziness, convulsions and seizures as the main manifestations). Silkworms should be used under the guidance of a professional Chinese medicine practitioner, and should not be used blindly on their own, so as not to cause serious adverse effects.