Repeated diarrhea is easy to cause rectal-anal irritation, diarrhea more often patients are prone to repeated irritation, causing the anal opening rectal mucosa congestion, edema or even erosion of the situation. Generally this situation is likely to lead to pain, or the feeling of discomfort at the anal opening. This situation, should pay attention to the following points: 1, pay more attention to rest, as far as possible to give antidiarrheal drug treatment, reduce the stimulation of the anus. 2, warm water sitz bath, for the improvement of the congestion of the anus, edema has a great help. 3, the compound coriander acid ester anus, the drug for the stimulation of the anus, especially for the simultaneous combination of hemorrhoids has a very good effect. So diarrhea, anal opening stimulation pain patients, need to pay attention to the above points, at the same time if accompanied by fever, need to actively anti-inflammatory symptomatic treatment.