1. Lycopodium Clavatum 30C
Lycopodium Clavatum can relieve gas pains and a bloated abdomen improved by passing gas
2. Nux Vomica 30C
Nux vomica relieves nausea, cramps, indigestion, constipation, heartburn and bloating.
3. Arsenicum Album 30C
Arsenicum album is indicated for diarrhea often caused for food poisonsing and the child is cold, anxious or restless.
All of these homeopathic dilutions can be beneficial for gastrointestinal complaints in children.
I recommend consulting with an alternative health specialist.