É Xián (Goose Saliva) is a traditional Chinese medicinal material. It is the oral secretion of the domestic goose Anser cygnoides Linnaeus or the greylag goose Anser anser Linnaeus, animals belonging to the family Anatidae. It was first recorded in Bencao Gangmu (Compendium of Materia Medica).

Efficacy & Actions

Clears heat, removes toxicity, reduces swelling, relieves pain, moistens dryness, and promotes fluid production.

Indications

Sore throat, mouth ulcers, and infantile oral thrush. Dry cough with scanty phlegm, and thirst due to dryness‑heat. Sores, boils, and insect bites (for external use).

Modern Pharmacology

Modern research has shown that goose saliva contains various active substances, such as lysozyme, immunoglobulins, and mucins, which exhibit antibacterial, anti‑inflammatory, and mucosal repair‑promoting effects. It has inhibitory effects on common pathogenic bacteria such as Staphylococcus aureus and Streptococcus hemolyticus. In addition, the mucins in goose saliva can cover wounds, providing protective and lubricating effects.

Ingredients

Lysozyme. Immunoglobulin. Mucin. Various amino acids and trace elements.

Usage & Dosage

For oral administration: May be swallowed directly, or mixed with warm water before taking. Approximately 3–5 mL each time, 2–3 times daily. For topical application: Apply fresh goose saliva directly to the affected area, several times daily; or mix with a small amount of borneol or honey before applying.

Contraindications

Use with caution in patients with Spleen‑Stomach deficiency‑cold: As this product is cold in nature, excessive intake may cause diarrhea. Fresh goose saliva should be obtained from healthy domestic geese to avoid contamination from diseased birds. Individuals with allergic constitution should test a small amount before first use. Dosage for pregnant women and children should be reduced, and use under the guidance of a physician is recommended.

Selected Formulas

For sore throat (empirical formula) Take an appropriate amount of fresh goose saliva, swallow it slowly directly, 3-5 times daily. For infantile thrush (oral candidiasis) (Bencao Gangmu) Take goose saliva, mix with a small amount of Huanglian (Coptis) powder, and apply to the affected area, 2-3 times daily. For dry pharyngitis and hoarseness (empirical formula) Take goose saliva mixed with honey, 5mL each time, hold in the mouth and swallow slowly, several times daily. For swelling and pain from insect bites (empirical formula) Take goose saliva and apply to the red and swollen area to reduce swelling and relieve itching.

Medicinal Parts

It is the saliva of the domestic goose Anser cygnoides Linnaeus or the greylag goose Anser anser Linnaeus, animals belonging to the family Anatidae.

Selection & Storage

Store in a cool, airtight container under refrigeration (2–8°C), protected from contamination. It should not be stored for long periods; fresh collection is preferred.