Preparation and application of artemisia apiacea sesquiterpene-rich extract external preparation for treating inflammatory dermatosis

The invention belongs to the field of biomedicine, and relates to preparation of an artemisia apiacea sesquiterpene-rich extract external preparation and application of the artemisia apiacea sesquiterpene-rich extract external preparation in prevention and treatment of eczema, acne and other inflammatory skin diseases. The content of five types of sesquiterpenoids, which can be quantified, of artemisinin, artemisinin C, dihydroartemisinin, artemisinin I and artemisinin in the raw material medicine is larger than 50%, and the content of two types of flavonoid components, which can be quantified, of casticin and artemisinin is about 1.5%. The external preparation for treating inflammatory skin diseases such as eczema and acne is prepared by adding pharmaceutically acceptable auxiliary materials into the raw material medicines. The external preparation has the effects of regulating skin inflammation and relieving edema, and has good relieving and even eliminating effects on erythema, pruritus, swelling, skin com