Watermelon cream needs to be spit out after about 30 minutes of spraying. Watermelon cream has the effect of clearing away heat and fire (removing heat and fire from the body), local anti-infection, anti-inflammatory and pain relief, and is mainly used to treat redness, swelling and heat pain in the throat, mouth sores and so on. Watermelon cream is usually a topical spray, which can be completely absorbed within half an hour to exert anti-inflammatory and pain-relieving effects, so it is usually sprayed on and spat out in about 30 minutes. If the swelling and pain in the throat is serious, it may be appropriate to stay for a longer period of time, so as to play a better role, and should be rinsed before use to keep the mouth clean. When using should pay attention to the need to use at intervals, do not use two doses at a time, causing poisoning. In order to prevent accidental inhalation into the airway when spraying, try not to inhale. Do not eat spicy, greasy food during use. Don’t drink water within half an hour in case the medicine can’t be exerted. Watermelon Cream should be used under the guidance of a doctor, if the medicine is ineffective after three days, or other uncomfortable symptoms, it is recommended to go to the hospital in time.