Zhèng Quánwàng 鄭全望 (late Míng, fl. early 17th c.), physician of Xìnzhōu 信州 (modern Shàngráo 上饒 in Jiāngxī). Author of Zhàngnüè zhǐnán 瘴瘧指南 (KR3eg038), preface dated Wànlì 37 (1609), jǐyǒu 己酉, tenth month, first day.
Zhèng described his medical formation in the Zhàngnüè zhǐnán preface: he was a sickly child and grew worse as he matured, contracting an internal-injury condition that nothing cured. He then immersed himself in the Nèijīng, Nánjīng, Jiǎyǐ jīng, Dōngyuán shíshū, Shānghán liùshū, and the works of Xuē Jǐ (薛己) — and on remote regions, exotic prescriptions, and unusual diseases he “sailed against the current to the source, considering them in detail”.
The immediate motivation for the book was an epidemic: in Wànlì 30 (1602, rényín 壬寅), the autumn was unusually hot and the winter mild, and an epidemic followed that resembled malaria but with continuous fever, Shānghán but with all three-yáng and shàoyīn / tàiyīn signs present simultaneously, and internal-injury but with the qìkǒu pulse not exceeding the rényíng pulse. Physicians of the time were defeated; those who treated by Shānghán methods saw their patients dead in seven days, those who treated as internal-injury or malaria saw the patients die later, and even the old hands’ clinical resources were exhausted.
Zhèng’s doctrinal source is Sòng-period Lǐ Dàizhì 李待制 (Lǐ Qiú 李璆) and Zhāng Zhìyuǎn 張致遠’s Zhàngnüè wèishēng fāng 瘴瘧衛生方 — the principal Sòng monograph on Lǐngnán “miasma” diseases, written from direct experience by officials who had served in the south. His own book updates this Sòng synthesis for the late-Míng clinical milieu.
Native place: Xìnzhōu (Jiāngxī), not Lǐngnán itself — Zhèng was a Jiāngxī physician with strong scholarly engagement with the Lǐngnán medical tradition, not an indigenous Lǐngnán practitioner. No CBDB record.