What to do if diarrhea keeps happening?

The patient had diarrhea all the time. It was considered that acute gastroenteritis occurred, which was mostly caused by the patient eating unclean food. It was suggested that the patient should go to the hospital for examination as soon as possible. After diagnosis, antibiotics should be applied under the guidance of doctors, and antidiarrheal drugs should be used, such as montmorillonite powder, etc., and fluid replacement therapy should be carried out at the same time to supplement water in the body.