[Meridian three-combined therapy for treatment of ordinary psoriasis: a multi-center randomized controlled study].

Objective: To evaluate the effectiveness and safety of the meridian three-combined therapy for treatment of ordinary psoriasis.

Methods: A multi-central, randomized and positive drug controlled trial was adopted, and 233 cases were divided into an observation group of 116 cases and a control group of 117 cases. The observation group was treated with thread embedding at points, blood-letting puncture on the back of ear and auricular point pressing (i.