Medicament for treating skin itch and preparation method thereof

The invention discloses a medicament for treating skin itch and a preparation method thereof. The medicament is mainly prepared from Chinese ephedra, medicinal evodia fruit, cassia twig, perilla fruit, artemisia capillaris, Chinese mosla herb, fineleaf schizonepeta herb, dahurian angelica root, Chinese ligusticum rhizome, muskroot-like semiaquilegia root, great burdock achene, kudzuvine root and common ducksmeat herb in a certain weight ratio. The medicament has the functions of clearing heat, promoting diuresis, tonifying spleen, reinforcing the stomach, detoxifying and diminishing swelling, has quick response when being used for treating skin itch, and is free from toxic and side effects.