There is no uniform conclusion on how long it takes to expel dampness and toxins, and the time required varies depending on the patient’s physical condition and the degree of illness. Dampness and toxicity clear tablets are a kind of Chinese patent medicine composed of di Huang, Angelica sinensis, Salvia miltiorrhiza, bitter ginseng, Scutellaria baicalensis, white fresh skin, Poria cocos and so on, which can nourish the blood and moisten the dryness, dissolve the dampness and detoxify the toxins, dispel the wind and stop the itching (stop the itching by dispelling the wind that infringes upon the muscle surface). It is used for wind itching caused by blood deficiency and wind dryness, which is characterized by dry, flaky and itchy skin with scratches, blood scabs and hyperpigmentation; itchy skin with the above symptoms. The patient’s condition degree is different, the medication time certainly exists individual differences, it is recommended to follow the doctor’s instructions reasonable use of medication. The adverse reactions of wet poison clear tablets are not clear. Contraindications for pregnant women and allergic individuals to take with caution. Precautions for avoiding tobacco, alcohol, spicy, greasy and seafood food; should not be taken at the same time during the use of warm drugs; children, the elderly, breastfeeding patients and people suffering from other diseases should be taken under the guidance of a physician; due to diabetes, renal disease, liver disease, tumors and other diseases caused by itchy skin, does not belong to the scope of the adaptation of this product. Before taking this medicine, you need to be guided by a doctor for identification, and you can’t take the medicine on your own, so as not to cause adverse consequences to the body.