I kept my 7 yr. old grandson who was also suffering from severe constipation.His parents had him on a nightly dose of milk of magnesia. The boy seemed dehydrated and so I gave him lots of water to drink daily, (instead of sodas and sweet drinks) and about 6oz of undiluted apple juice to drink just before going to bed. This procedure seemed to help him, it softened his stool enough to have a b.m. without straining. I did not have to give him ANY laxatives at all while I kept him on this regimine. Hopefully, this may help your little boy too. A concerned Gramma.