Consipation advice!

I’ve literally tried everything from giving her water, prune juice, pear juice, feeding her more dark fruit and fruit in general but I’m still dealing with consipation! This morning she was so badly consipated that I had to take a baby wipe and dig it out while she was pushing, it came out in pebbles. It was spreading her anus to the size of a quarter it was so hard and I had to put Vaseline around it to help her push it out. I hate her screaming in pain and having to deal with this, is there any other remedies I could do? She is 11 months old.

She’s on nutramigen for a milk allergy she’s had since 2 months old and I’m going to continue formula until a year old. She eats baby food in jars and what we eat so she gets a mixture.