Side effects of the Chinese medicine stiffworms include allergic reactions, dry mouth and throat, nausea, decreased appetite, and drowsiness, the severity of which varies from person to person. Stiff silkworm for silkworm moth family insects silkworm 4 ~ 5 age of the larvae infected (or artificial inoculation) white stiffness and death of the dry body. It is salty and pungent in flavor and flat in nature. Attributed to the liver, lung, stomach meridian. It has the effect of restraining wind and stopping spasm, dispelling wind and relieving pain (dissipating wind evil and relieving pain in the muscles and bones), and resolving phlegm and dispersing knots. Stiff silkworm can be used in treating liver wind with phlegm, convulsions of eclampsia, acute convulsions in children, tetanus, mouth awry, wind-heat headache, eye redness and sore throat, itching of wind rash, and hairy mumps. The use of silkworms is contraindicated for those with blood deficiency and wind-cold. Specific medication should be under the guidance of a specialist, not unauthorized use of medication.