Dimethylsilicone oil, is a linear polymer of dimethylsiloxane. Dimethylsilicone oil is obtained by hydrolysis and condensation of dichlorodimethylsilane with a small amount of monochlorotrimethylsilane, which has different viscosities due to different degrees of polymerization. Linear polymers can be divided into several types according to different viscosities of movement. Dimethylsilane oil is mainly used in pharmaceutical preparation, anti-water agent, anti-adhesive agent, lubricant, demoulding agent, defoamer, and is a component of emulsion or cream base. This product is non-toxic and non-irritating to the skin and can be taken safely. The anti-gas treatment is 3 times a day, 0.1-0.2g club once, and the rescue of acute pulmonary edema is mainly used in the aerosol.