The effect of cough syrup in water will be greatly reduced, so it is not recommended to use in water. Cough syrup is not only rely on the drug itself, but also need to rely on the syrup itself adhesion, attached to the throat area, to realize the local administration of drugs at the same time can also form a layer of sugar mucous membrane, used to block the external stimulus, if the cough syrup to water, adhesion will be weakened, the effect will be greatly reduced. Generally speaking, when coughing, will be accompanied by redness and swelling of the throat area and itching, and cough syrup can be directly on the redness and swelling of the itchy parts of the use, the use of a spoon can be directly in accordance with the instructions on the dosage of a time or medical treatment after the doctor’s instructions for the use of the method of consumption, do not blindly mix their own use of water. At present the cough syrup adverse reactions are not clear. It should be noted that when taking cough syrup, you need to avoid eating cold and spicy food. Children, pregnant women, breastfeeding and patients with underlying diseases such as diabetes should follow medical advice before use.