To help an anal fissure to heal it is important to stop straining during a bowel movement and manage the pain caused by the fissure. There are several treatment options. Making changes to your diet can help prevent constipation and make your faeces softer. You can do this by; eating a balanced diet with lots of fibre, drinking enough fluid so that you don't become dehydrated and taking regular exercise. It may help to use a lubricant such as petroleum jelly around your anus before you have a bowel movement. Sitting in a warm bath after a bowel movement may relieve your discomfort.
Attribution: BUPA