In hot weather, if there is no disease in the body, it is not recommended to take the blue root. It is the dried root of woad, family Cruciferae, which has the function of clearing heat and detoxification (removing heat and toxicity from the body), cooling blood and relieving pharynx, and can be used to treat or ameliorate the symptoms of warm epidemic, fever and sore throat, warm toxicity spots (warm toxicity invading the body resulting in blotchy skin), mumps, and rotting throat with cholera, etc. If you have any of the above symptoms, you can use it to treat the symptoms. If you have any of these symptoms, you can use Panax quinquefolium to treat them. As a Chinese herbal medicine, it is not recommended to use it to relieve the discomfort caused by the heat, as it is potentially risky to use it indiscriminately in the absence of a medical condition. It is important to note that the bitter taste and cold nature of the root is contraindicated for those who have a weak body without solid fire or heat toxins, and should be used with caution for those who have a weak spleen or stomach (spleen and stomach weak and cold). Chinese herbs should also be used under the guidance of a doctor’s diagnosis, do not use on your own, so as not to cause adverse effects on the body.