Constipation is very easy to appear anal pain, mainly because constipation when the stool can not be excreted or stool is dry and hard, mucosal irritation of mucosal damage or anal fissure may occur, in this case you can use potassium permanganate to sit in the bath, you can also use appropriate hemorrhoid plugs or hemorrhoid cream to symptomatic treatment. You need to take care of constipation, constipation patients should pay attention to the diet to avoid spicy, stimulating food, avoid strong tea, coffee, quit smoking, alcohol, do not stay up late, more intake of fresh green vegetables, fruits, pay attention to drink more water, more exercise, can increase the peristaltic function of the gastrointestinal tract, to a certain extent can relieve constipation. Usually you also need to pay attention to massage the abdomen, you can go up and down to push the abdomen, and if necessary, you can use laxative drugs to relieve constipation.