HI Thank for asking to HCM I really appreciate your concern for your son, this is very common condition being seen in such age group, there are many method available that you can try, awake the child for voiding during the night keeping in mind the time of his bed wetting, this will give satisfactory result but takes little more time, if this fails then medicine can be tried, I actually administered Tab Amitriptyline one tab at bed time this gives immediate result, but this is the last option, hope this information helps you, nothing to worry even if you do not try anything then also this will go away with the time for sure, have good day.