With anal fissures, it is important to maintain smooth bowel movements. Consume more fresh fruits and vegetables, such as bananas, kiwis, strawberries, celery, and spinach, as their rough fibers help lubricate the intestines and facilitate bowel movements. Avoid spicy and irritating foods, foods that cause internal heat, especially avoid chili peppers, onions, ginger, and garlic, and do not drink alcohol, as these can exacerbate constipation and worsen symptoms of anal fissures. Additionally, keep the affected area dry and clean to prevent bacterial infection, and wash with warm water. If there is inflammation in the area of the anal fissure, a sitz bath with potassium permanganate can be used.