Harmful mainly refers to adverse reactions, the adverse effects of taking honeysuckle are not clear, and should not be taken by people with cold spleen and stomach (spleen and stomach weakness and cold), or yin evidence of sores and ulcers, which may be aggravated by the consumption of this type of patients. Honeysuckle infusion effect is limited, the correct way to take is water decoction. Honeysuckle is also known as honeysuckle, double flowers and so on. It is cold in nature and sweet in taste; it belongs to the lung, heart and stomach meridians. Its effects include clearing heat and removing toxins (removing heat and poisonous evils from the body) and dispersing wind and heat (evacuating wind-heat evils from the outside). This drug is mainly used for sores, carbuncles, swollen boils; external wind-heat, fever at the beginning of the disease can dissipate the heat of the lung meridian evil; can treat sore throat, dengtoxin (acute infectious diseases, the skin can be seen to be red like paint); can also cure fever and blood dysentery (dysentery caused by feeling the heat, see blood in the stools) and other diseases. Adverse reactions to honeysuckle are not clear, and it is contraindicated for those with cold spleen and stomach (spleen and stomach weakness and cold), and pus clearing from sores and ulcers with deficiency of qi, which may be aggravated by such patients taking it. It is prohibited for those who are allergic to it. Honeysuckle in water can not fully dissolve the active ingredients, thus affecting the efficacy, it is recommended to use the decoction. If you have a need for medication, please take it correctly under the guidance of a professional physician, not to buy and take it on your own, so as not to affect your health.