Cicada, whose skin is called cicada slough, is rich in chitin, isoflavone pterin, pterin and adenosine triphosphatase, and is often used to treat exogenous wind-heat and cough with hoarse voice. Sore throat. Rubella pruritus, conjunctival congestion, tetanus, infantile convulsion and epilepsy, crying at night, etc., according to "China Pharmacology", are also beneficial to strengthening yang, relieving cough and promoting fluid production, protecting lung and kidney, resisting bacteria and lowering blood pressure, treating baldness and inhibiting diseases.

When the mature nymph of the cicada changes into an adult, the molted shell of the cicada is called cicada slough, also known as "cicada slough" or "cicada skin". Its main components contain chitin and protein, which is sweet, salty and cold, and enters the lung and liver meridians. It is an important traditional Chinese medicine for relieving exterior symptoms by pungent and cool.

Knowing that cicadas are cold and fragrant, they have the functions of dispersing wind, dispersing lung, relieving fever and calming convulsions. Cicada is rich in nutrition and delicious, and it has become a fashionable delicacy. It can be fried before the larvae become cicadas, or it can be pickled with edible salt and then fried.

Cicada is rich in nutrients, with dry basis protein content above 70%, fat about 7%, vitamins and various beneficial trace elements higher than ordinary meat foods, so it can be called the protein king in today's food.