I gave my son a tiny amount of Dulcolax (1mls) as he was so ill on 5mils. He’s also suppose to have movicol everyday but for some reason he’s refusing it point blank, we can’t convince him. I feel stuck as he’s in agony from withholding. He’s managed to pass the big bulk but woke up screaming this morning with stomach cramps, I can’t send him to school like this. He’s only 4. Any substitutes for Dulcolax but a softer version? Should I try him on lactoluse while he’s refusing movi?