S.D.
I give another vote to Miralax. My son is incredibly picky about his juice and doesn't notice it at all. He has had terrible problems with constipation. Since we started giving him half a capful every day and setting him on the potty every night, it has gotten much better. Some things the doctor told us that helped were not to keep him on the potty longer than 10 minutes...even if you know it's there. This can cause hemmoroids (sp?) and make the problem a whole lot worse. So, if you know it's there, put her on, let her sit. If nothing, let her run, jump, play, then try again about 30 minutes later. Doc said NO enemas, and we had been relying on these. This doesn't allow their bodies to learn to work out the kinks from the top down (or something like that.) Let me know if you have more questions. Good luck! I know it's frustrating!!