Have read other threads in archives recommending a bit of prune juice to help babies if they seem a bit "bunged up". ds is 7 month old, and will sip extra water with a bit of persuasion. If making prune juice, how many prunes would I need to boil, and with how much water? Don't want to make it too strong!! And how much would he need to drink to have any effect. Or would prune puree be better?