The wound of anal fissure needs about a week to heal, usually need to pay attention to good local cleanliness and hygiene, you can use warm water or dilute potassium permanganate sitz bath every day, especially after defecation pay attention to cleaning, use iodophor to clean and disinfect the skin around the wound, keep clean and dry, usually pay attention to avoid sweating as much as possible, affecting the wound healing. Recently pay attention to keep the stool smooth, treatment to solve constipation, you can eat more fiber-rich vegetables, fruits, constipation, dry stool easy to prolong the wound healing time, and even affect the healing. It is also necessary to develop good bowel habits, defecate on time every day, do not squat for a long time when defecating, you can wash the anus with warm water after defecation. The actual fact is that you should not eat spicy and stimulating food.