Weeping Forsythia Capsule Classic Formulas … Natural Herb Library

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Clears heat and resolves toxicity ... Lian Qiao is a core early-stage febrile and sore-throat herb used when heat, redness, swelling, or suppurative tendency are prominent.
Disperses wind-heat from the upper burner ... it is commonly selected for fever, throat pain, red eyes, and tender swollen nodes when exterior heat has begun to move inward.
Reduces abscesses and dissipates nodules ... classical use extends to carbuncles, breast abscess, scrofulous swellings, and hot painful lumps.

Yin Qiao San ... the defining wind-heat formula pairing Jin Yin Hua with Lian Qiao for sore throat, fever, and early febrile disease.
Qing Ying Tang ... warm-disease formula context where Lian Qiao helps vent heat and toxin while protecting the upper burner.
Lian Qiao Bai Du San and related toxin-resolving prescriptions ... used when swelling, redness, and suppuration are more prominent than simple exterior symptoms.

Standard materia medica describes Lian Qiao as bitter, slightly acrid, and slightly cold, entering the Heart, Lung, and Gallbladder to clear heat, resolve toxicity, and disperse clumps.
Traditional teaching consistently places it beside Jin Yin Hua in the wind-heat and heat-toxin category, especially for the throat, chest, and upper-body swellings.