At first i went to the doctors to find out what it was, and she said (after examining it) that it was just an anal fissure. She offered some sort of rectally taken pill but at the time i declined it thinking it would just heal. An anal fissure is a cut or a tear in the thin, delicate lining of your anus. The tear often exposes the muscle around the anus, called the anal sphincter. Lidocaine is the most commonly prescribed topical anaesthetic for anal fissures. It comes in the form of either a gel or an ointment, and is usually only used for 1 to 2 weeks because the fissure should start to heal within this time. An anal fissure can lead to burning, stinging, or sharp pain during bowel movements. The pain can last anywhere from a few seconds to a few hours. In severe cases, the pain can cause a spasm of muscles that surround the rectum, which can cause the pain to intensify. an anal fissure is a small tear or crack in the lining of the anus. If you experience severe pain or bright red bleeding during or after bowel movements, you may have an anal fissure. an anal fissure can occur when someone passes a large or hard stool (poop), which stretches the lining of the anus until it tears. It also can happen when frequent diarrhea irritates the lining. An anal fissure can cause pain or itching in the area, especially during and after bowel movements. We want the forums to be a useful resource for our users but it is important to remember that the forums are not moderated or reviewed by doctors and so you should not rely on opinions or advice given by other users in respect of any healthcare matters.