Tonic herbs mainly include: 1) qi tonic: such as Astragalus, Atractylodes, Radix Codonopsis, etc., which can be used for qi deficiency, weakness, spontaneous sweating, fatigue, lazy speech, etc.; 2) yang tonic: such as Epimedium, Cinnamomum, Bacopa monnieri, etc., which can be used for cold extremities, impotence and premature ejaculation, etc.; 3) yin tonic: such as Asparagus, Medlar, Fructus Lycii, Lily, etc., which can be used for yin deficiency, night sweating, insomnia, etc.; 4) blood tonic: such as Angelica, Radix Paeoniae, etc. . Patients should be aware that tonic drugs tend to nourish and hinder the spleen, and should be taken under the guidance of a professional doctor, not purchased and used on their own.