Hello, I understand your concern Your child’s ultrasound finding of “reactive mesenteric lymph nodes” is commonly seen in children and usually indicates a mild, self-limiting infection — often viral or gastrointestinal. These lymph nodes are part of the body’s normal immune response and can cause intermittent abdominal pain, especially near the belly button The pain usually comes and goes, lasts a few minutes, and is not associated with serious disease in most cases. This condition is called mesenteric adenitis and is often confused with gastritis or other abdominal issues. It’s good that stopping milk helped reduce bowel movements — this could suggest temporary lactose sensitivity or a gut reaction to infection, which is also common post-illness.

Mesentric lymph nodes are found in the abdomen and the condition is termed so when they are inflamed. It is usually a viral condition in children and resolves in over few weeks in its own, is a benign condition You can give Paracetamol to relieve pain, a warm compress locally may help It’s good to give a soft bland diet, a diet low in fat. No fried item or spicy food. Bananas and toasted bread are great You can try probiotics like Sporolac or Vizilac for 2 weeks with a lactose free diet. Instead of milk give curd or dahi with active culture- can’t eliminate milk products for long Add Syp Zinc 20 mg per day for 2 weeks