Pregnant women need to use the side lying position, push the drug into the body, and keep the original position to wait for defecation can be. Keserol is a glycerin preparation, is more commonly used in clinical laxative drugs, the principle is to soften the feces in the body through the drug, in order to relieve constipation, defecation effect. Pregnant women should then use the left lateral position, the buttocks part of the use of objects cushioned, the drug package opening cut flat, to avoid irritation of the anus, first squeeze out a small amount of drugs to the anus to lubricate the anal area, and then inserted into the anus to quickly squeeze out the drug, pull out the package to maintain the posture, waiting for the drug to take effect. It is worth noting that the use of corkscrew during pregnancy should be rationally selected under the guidance of a doctor, do not self-medicate to avoid other serious problems.