For patients allergic to silicone oil emulsion, please note that the warranty period of silicone oil emulsion after opening the bottle is 28 days, and it cannot be used after expiration. It is forbidden for patients who are allergic to silicone oil emulsion. So far, no adverse reaction has been observed after taking this drug. This drug is generally used for lubrication and foam removal during gastroscopy. For example, swallowing saliva will affect the examination during gastroscopy. At this time, silicone oil emulsion can be used for relief. Before the examination, doctors and nurses will give appropriate guidance, and must be familiar with the efficacy and efficacy of this drug, as well as the time of action, This medicine can also be used to treat uncomfortable symptoms caused by excessive gas accumulation in the intestines, such as abdominal distension, and can also be used after surgery. The above scheme is only for reference. Please use the specific drugs under the guidance of professional doctors according to your own conditions.