My daughter is 14 months old and we have been dealing with this since she was 6 months. Her pediatrician told me to put Miralax in her milk, half a cap full, EVERY NIGHT before bed. She also receives Pedia-Lax suppositories, which is an over the counter suppository. The Miralax helps make her stool softer so it's easier for her to go, however she still gets constipated so I use the suppositories as back up. The suppositories work within 5 minutes and she will produce a dirty diaper that has needed to come out for days.If your baby is bleeding, she needs to go to the doctor ASAP. It's called an anal fissure where she has ripped either the inside or the outside of her bottom while she's trying to go to the bathroom. She needs to see a doctor. Prune juice will work to clean her out but it's not a permanent solution unless you give her a little bit every day. Give her 1/2 ounce to 1 ounce per month old she is. (If she is 6 months old, give her 3-6 ounces per day, but no more than that.)Good luck!!!