Four-Season Onion Bulb Classic Formulas

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Releases exterior and dispels Wind-Cold — bulb base of the four-season scallion cultivar; pungent-warm dispersion for early wind-cold colds with chills, headache, and blocked nasal passages; functionally equivalent to Cong Bai (white base, herb #92) from standard Allium fistulosum
Invigorates Yang and disperses Cold — abdominal cold-pain, cold limbs, and nausea from Cold accumulation in the Middle Jiao; Yi Yang Jiu Ni (revolve Yang to rescue counterflow) application shared with all Allium fistulosum bulb drugs
Resolves toxicity and reduces swelling — topical fresh application for mastitis, carbuncles, and minor infections

Cong Chi Tang (葱豉汤) variant — bulb base combined with Dan Dou Chi for early Wind-Cold cold; functionally identical to the standard Cong Bai formulation (herb #92); use is interchangeable in clinical practice

CULTIVAR NOTE: Si Ji Cong Tou (四季葱头, 'four-season onion head/bulb') designates a year-round-producing cultivar of Allium fistulosum — the same species as Cong Bai (葱白, herb #92) and Cong (葱, herb #93); the XLSX source filed three separate entries for Bulbus Allii Fistulosi, likely representing the standard white base, the whole plant, and this specific four-season cultivar; in standard TCM Pharmacopoeia usage, Cong Bai (Bulbus Allii Fistulosi) is the recognised drug; Si Ji Cong Tou is primarily a culinary designation used in markets distinguishing continuous-harvest cultivars from seasonal varieties
Ben Cao Gang Mu (Li Shizhen): the onion bulb base (Cong Bai) is 'pungent and warm, opens the pores, invigorates Yang, disperses Cold — the white root is the medicinal part, the green stalk is secondary; consumed in all seasons as a kitchen medicine since antiquity'