OBJECTIVE:To prevent and treat contact dermatitis for contacting chemical substance harmful to workers health such as coal dust,tar,anthrone and naphthol,etc.METHOD:The effective constituents were drawn from Chinese materia medica including Cortex Dictamni,Flos Campsis and Radix Glycyrrhizae,with which a wash for skin was compounded with surfactants.The standard of quality control was studied.RESULTS:One hundred fifty six patients with the wash for skin were treated clinically.The total effective rate was...