描述

黄芪的功效：

补中益气：（Tonify the middle and replenish qi）
升阳固表:（invigorating qi for consolidating superficies）
利水消肿：（Diuresis and swelling）
生津养血:（nourishing blood and promoting granulation）
托毒排脓：（pus draining and toxin expelling）

需要注意的是，黄芪并非人人适宜，以下人群需谨慎服用：

感冒发热、有实热症状（如口舌生疮、大便秘结）的人不宜服用。
阴虚体质，有内热症状（如五心烦热、盗汗）的人不宜服用。
高血压患者，特别是血压较高的人，需谨慎使用，最好在医生指导下服用。
孕妇及经期女性，需在医生指导下使用。
黄芪可能影响睡眠，睡前不宜服用。

总而言之，黄芪是一味有益健康的中药，但需根据自身体质和情况，在专业人士指导下合理使用。

It should be noted that Astragalus membranaceus is not suitable for everyone. The following groups of people should take it with caution: those with a cold and fever, and those with real heat symptoms (such as mouth ulcers, constipation) should not take it. People with Yin deficiency constitution and internal heat symptoms (such as hot palms, soles and chest, night sweats) should not take it. Hypertensive patients, especially those with high blood pressure, should use it with caution and it is best to take it under the guidance of a doctor. Pregnant women and women during their menstrual period should use it under the guidance of a doctor. Astragalus membranaceus may affect sleep and should not be taken before going to bed. In conclusion, Astragalus membranaceus is a beneficial traditional Chinese medicine for health, but it should be used reasonably under the guidance of professionals based on one’s own constitution and condition.