Thanks for the query. Use stool softeners. Also, add more fibre and fluid (liquid) to your child’s diet. Wholegrain cereals, breads, fruit – especially prunes – and vegetables are good sources of fibre. Once the hard stools turn to soft stools, the anal fissure will have the chance to heal. Until your child’s fissure has completely healed, you can apply a layer of petroleum jelly or zinc oxide cream to your child’s anus. This will help make passing stool less painful. For vaginal tears you may use, Nonsteroidal anti-inflammatory drugs (eg, ibuprofen ) Warm baths—Sitting in a warm bath that only covers your hips and buttocks can sometimes help; this is called a sitz bath. Ice or witch hazel pads—Ice wrapped in a cloth or chilled witch hazel pads applied to the area are sometimes used to dull the pain. If you have a more serious laceration, your doctor may recommend that you take a stool softener and follow a special diet. Surgery may be required in selected cases. Hope i helped you.