Amaranthus can be used to treat skin diseases, but its effect on skin diseases is mainly in analgesia and swelling, and it does not lead to a cure. Therefore, it is important to systematically treat the cause of the skin condition when it occurs. In Chinese medicine, amaranth is commonly used for eczema, herpes zoster, warts, acne, ringworm and other skin diseases. Amaranthus is also known as horsetongue and horsetail, which is cold in nature and is a common wild vegetable in life, as well as a Chinese herbal medicine with the ability to clear heat and remove dampness, reduce swelling and disperse blood, and detoxify and promote lymphatic flow. It has been shown that pounding amaranth and applying it wet on the wounded area can help to inhibit fungus, relieve burning discomfort and relieve pain, which can promote the recovery of the patient. In addition to topical application, there are several other ways in which Amaranthus can be used in the treatment of skin diseases. First, it can be decocted in a pot with water, brought to a boil and then allowed to warm. Secondly, the patient can pound the leaves of Amaranthus stems and mix them with rice slop to make a paste that can be applied externally to the wounded area to relieve discomfort. Alternatively, the pounded amaranth can be applied to a sterile gauze block and then fixed to the wound with medical tape. However, the effect of amaranth on skin diseases is limited, so after the pain is relieved, it is advisable to consult a doctor to determine the type of skin disease and then take a combination of medications.