An anal fissure can be very uncomfortable, but it is highly treatable and usually heals with simple care. To relieve pain and promote healing, a doctor can prescribe topical nitroglycerin or diltiazem ointment, which relaxes the sphincter muscle. Over-the-counter lidocaine ointment can also help numb the area before bowel movements. To prevent further irritation, use a stool softener like docusate sodium and take warm sitz baths for 15 minutes daily to soothe the area. Please ensure you drink plenty of water and eat high-fiber foods. If bleeding increases or pain persists after a few weeks, consult a healthcare provider for an evaluation.