Dimethicone and glycerin are both components of certain lubricants and two different medications for different purposes, and are not food, so they should not be taken routinely and need to be used as prescribed by a doctor when specific conditions demand it. Dimethicone and glycerin are chemically stable substances. Dimethylsiloxane has the effect of improving intestinal flatulence, commonly used in gastroenteroscopy and abdominal X-ray to remove vesicular mucus; glycerin is used for the treatment of constipation, or used externally for chapped skin, peeling and so on. It should be noted that if the dimethylsilicone oil and glycerin allergy is prohibited, dimethylsilicone oil overuse may have diarrhea, abdominal pain, vomiting and other discomforts, glycerin overuse may lead to headache, nausea and other adverse reactions. Dimethicone oil and glycerin should be used in a standardized way with the help of a doctor.