Terms referring to psoriasis vulgaris in the classical Chinese medicine literature: a systematic analysis

Bai Bi, She Shi and Bi Feng are the terms most consistently used to refer to psoriasis vulgaris. They first appeared in 1368-1644AD (Ming dynasty) and Bai bi remains in use. Regarding the other terms, certain citations may have referred to psoriasis vulgaris, but in other cases these terms could be used for disorders whose descriptions were inconsistent with psoriasis.