White slippery tongue coating (she shang bai hua tai): Chinese Medicine Cases

Always Catching Colds With a Thick White Tongue Coating? Song Dynasty Formula Master Doctor Xu Shuwei Treats Cold Damage With a White Slippery Tongue Coating (Zhi Zi Tang to Induce Vomiting, Then Xiao Chai Hu Tang to Harmonize) — and the Thousand-Year History of Tongue Diagnosis