Consider starting an osmotic stool softener such as Polyethylene Glycol (PEG 3350) or Lactulose syrup. These are safe, non-habit-forming options for this age group that work by drawing water into the stool to make it easier to pass. Please confirm the child's approximate weight so a precise dosage can be provided.
Encourage a relaxed, regular toilet routine (e.g., 10 minutes after breakfast or dinner). Ensure his feet are supported on a small stool if using a standard toilet to make straining unnecessary.
Next Steps
Encourage plenty of water throughout the day. Introduce high-fiber fruits (like prunes, pears, or papaya) and reduce excessive consumption of cow's milk or processed foods, which can sometimes exacerbate constipation.
Health Tips
Please seek immediate in-person medical attention of a paediatrician if your son develops severe abdominal pain, persistent vomiting, fever, or blood in his stool.