Amaranth does not have the effect of treating purpura. Amaranth, also known as horse tooth grass, is sour in taste and cold in nature, with the efficacy of clearing heat and removing toxins, cooling the blood to stop bleeding and stopping dysentery, and can be used clinically to treat febrile dysentery (dysentery caused by feeling heat and toxins and seeing blood in the stool), febrile sores and ulcers, leakage of menstruation (menstruation in excessive amount or more than a drip), blood in the stool, and dampness-heat infiltration (invasion of intestinal tract, bladder, pubic region, lower limbs by dampness-heat evils), among other conditions. Purpura belongs to the category of “epistaxis (bleeding from the skin)” in Chinese medicine, which may be caused by wind-heat, blood-heat and injury to collaterals (the blood is overheated and damages the meridians), qi failure to take in blood (the qi is unable to take in the blood), and yin deficiency and fire exuberance, etc. The treatment for the solid case is to clear heat and cool the blood (to remove the heat evils and to cool the blood), while the treatment for the deficient case is to nourish yin and clear away the heat. It can be seen that the efficacy of amaranth is not related to purpura, and there are no reports of clinical use of amaranth in treating purpura, so the use of amaranth in treating purpura is not recommended. A single flavor of the drug may not always be able to play a therapeutic effect. If patients need to use medication, they should be under the guidance of a doctor, and should not use medication without authorization.