Drinking chrysanthemum and honeysuckle together in water does not usually have much effect on healthy adults. However, if taken in excess or for a long period of time, it may cause diarrhea in people with cold spleen and stomach (weak and cold spleen and stomach), and may cause or aggravate menstrual cramps in women with a cold constitution. Chrysanthemum, bitter, sweet and slightly cold in nature, belongs to the liver and lung meridian, has the effect of calming the liver and clearing the eyes, dispersing wind and clearing heat, and clearing heat and detoxification (removing heat and toxicity from the body), and is commonly used in clinical practice for treating headache and dizziness, dimming of the eyes, wind-heat and colds, redness and pain of the eyes, and carbuncles and toxins. Where Yang deficiency or headache and cold (fear of cold) are contraindicated. Honeysuckle is cold in nature, sweet in taste, and belongs to the heart, lung and stomach meridians, with the effect of dispersing wind-heat, clearing heat and removing toxins. Clinical treatment of external wind-heat, carbuncle furuncle (mostly in the limbs or facial sores, shape small root deep, such as nails as hard), fever and blood dysentery (feel the heat caused by dysentery, stools see blood), the first signs of warmth and so on. Spleen and stomach cold and qi deficiency sores and pus clearing people should not take. The adverse effects of chrysanthemum and honeysuckle are not clear, both are cold drugs, if not taken in accordance with medical advice, for people with cold spleen and stomach, may damage their spleen and stomach, resulting in malfunctioning of the spleen and stomach, causing abdominal pain, diarrhea and other discomforts. For women with a cold constitution, drinking chrysanthemum and honeysuckle may cause menstrual cramps, or further aggravate menstrual cramps. Chrysanthemum, honeysuckle as a drug use, need to be used under the guidance of a professional physician, not blindly, to avoid adverse effects.