Avoid unnecessary and unnecessarily long courses of antimicrobial treatment. Be active in taking samples if a patient has diarrhoea during or after antimicrobial treatment. In hospitals and long-term care institutions, isolate patients with diarrhoea. The close surroundings of patients with diarrhoea should be cleaned with agents that are effective against bacterial spores.When treating a patient with diarrhoea, the hands should be washed with water and soap before applying a disinfectant.