6 month old constipated nothing works.... prune juice apple juice supp karo he strains really hard what should i do?

Constipation : Constipation is a common problem. Is he only straining or are his stools hard? Babies may not have adequate abdominal musculature to push. Pull his knees to his chest and stimulate his rectum with a thermometer. Try pear juice which you can mix with water if you like. Give him a variety of fruits (esp fruits with pits) and vegetables. Cut down on his cereal/starches. Change of formula can help.