It is normal for your stomach to start hurting all of a sudden after the use of corkscrew, it may be that corkscrew causes irritation to the intestinal wall, so it causes stomach pain. The use of the drug causes reflexive bowel movements, which can also cause stomach pain. There are two commonly used preparations of Keserol, one is glycerin preparation, the other is mannitol and magnesium sulfate compound preparation, the two preparations of the composition is different, but the principle is basically similar, are the use of drugs hypertonic effect, can soften the stool, stimulate the intestinal wall, to produce the reaction of defecation. It may cause irritation to the intestinal wall, so it is easy to cause stomach pain symptoms. After the drug will stay for a period of time, when the urge to have a bowel movement at the same time feel that they can no longer control the need to go to the bowel in time, which will also cause stomach pain. If you need to use Keflex, it is recommended to use the drug under the guidance of a doctor, do not blindly self-medication, in order to avoid adverse effects.