Background
In TCM, "staying well" is rarely framed around "boosting immunity" as a single concept. It is split into several patterns: "qi deficiency" (catching every cold, slow recovery, weak voice), "yin deficiency" (night sweats, dry throat, recurrent mouth ulcers), "damp-heat" (acne, sore throat, a coated tongue), and "wei qi instability" (sweating easily, sensitivity to drafts). The medicines on this page are linked to one or more of these patterns in traditional Chinese household use. They are not "immune boosters" in the Western sense, and they are not substitutes for vaccines or for the evaluation of recurrent infections.