Because honeysuckle tea is cold, people who are weak should not drink too much, let alone on an empty stomach. The stomach is cold in an empty stomach. When the stomach acid meets honeysuckle tea, it works quickly, and when the two cold meet, the cold increases, which causes stomach discomfort, nausea and vomiting. "Compendium of Materia Medica" contains "Honeysuckle is good at detoxifying, so it can cure carbuncle, swollen poison, sores and tinea ...". Since ancient times, honeysuckle has been commonly used for clearing away heat and toxic materials, treating febrile diseases, fever, toxic blood dysentery, carbuncle and other diseases, and also for wind-heat colds, bronchitis and other diseases. Modern pharmacological research shows that Flos Lonicerae has antibacterial, antiviral, anti-inflammatory, antipyretic and immune regulating effects.