There is no such thing as the best formula of bitter ginseng to relieve itching, it can be used by professional physicians to identify and match the medication, clearing dampness and heat can be matched with Phellodendron Bark, Poria cocos, ice, etc., and to kill insects can be matched with Phellodendron Bark, Phellodendron Bark, Tsubaki Bark and so on. Bitter ginseng is a traditional Chinese medicine, for the root of the leguminous plant bitter ginseng, bitter taste, cold nature, to the heart, liver, stomach, large intestine, bladder meridian, with clearing heat and drying dampness (clearing heat, drying dampness), insecticidal, diuretic effect, mainly used in the treatment of dampness-heat dysentery (dysentery due to dampness-heat), jaundice, blood in the stool, bring down the nether regions, vaginal itching, eczema, wet sores, itchy skin, and so on. Bitter ginseng is contraindicated in people with deficiency of cold in the spleen and stomach (spleen and stomach weak and cold). Bitter ginseng should not be used with quassia. When discomfort occurs, one should consult a doctor in time and choose medication under the guidance of physician’s diagnosis, and should not use medication on one’s own in order to avoid delaying the condition.