鳳仙薬は清熱除毒（体内の熱と毒素を取り除くこと）、鎮腫解痛（腫れと痛みを取り除くこと）の作用があり、主にただれ、疥癬、白癬などに用いられる。 Forsythia and Toxin Pill consists of forsythia, honeysuckle, hordeum vulgare, pollen of smallpox, scutellaria baicalensis, yellow dock, cypress, rhubarb, radix et rhizoma, bitter ginseng, thorns, windbreak, dahuricae dahuricae, qiangwu, ephedra, peppermint, chaihu, angelica sinensis, radix alba lactiflora, licorice, with the efficacy of clearing away heat and removing toxins and relieving swellings and pains, and is used in the treatment of sores and ulcerated boils with pus and water, salmonberry poisons (an acute infectious disease, which can be seen by the skin reddened like a pigmented one) sores and rashes, and scabies, scabies, and carbuncles and itch. 疥癬、疥癬、癰疽、疥癬、疥癬、痒みなど。