Sir/madam, my 7 years old son has been suffering from severe constipation and gas for the last 3 years. When he takes medicine he is good but after leaving medicines problem again occurs. His stool like goat's stool and very hard. He does not take any kind of junk food. Please suggest some treatment and some medicines. At present he is taking rabeprazole 20 for gas and c-peg junior for constipation.