Although the symptoms of psoriasis are manifested on the skin, its origin is in the body. Medical research has confirmed that the root of recurrent psoriasis lies in the imbalance of zang-fu organs and yin-yang of the five internal organs of the human body, which leads to blood toxicity caused by blood heat and blood dryness, thus showing the disease on the skin. Therefore, it is difficult to cure psoriasis simply by using a drug or leek root, which is the so-called treatment earthwork. Patients need scientific and systematic treatment and medication during the course of treatment to achieve good treatment results. /span