The Chinese herbs used to treat Lichen Planus are Chai Hu, Yuan Hu, Yu Jin, Magnet, Dragon Bone, Oyster, Radix Angelicae Sinensis, Radix Rehmanniae, Dan Pi, Bitter Ginseng, Phellodendron, Rhizoma Ligustici, Rhizoma Ligustici, Radix et Rhizoma Jinyinghua, Rhizoma Polygonati, and Fishy Herb. The Chinese medicine believes that flat warts are mostly related to liver stagnation and qi stagnation, so they are treated with liver-clearing and qi-regulating drugs, but they are also related to internal dampness and heat, so they are treated with heat-clearing, detoxifying and dampness-regulating herbs.