Dr. Anukarna Singh
You can replace brown rice with white rice for a few days, and give some other biscuits instead of using oat biscuits. Also try to feed 2 meals and a snack, and make sure the gap between these is not exceeding 8 hours. If it doesn't reduce with this add some pumpkin paste to his meals and give him overcooked soft food for about a week. You can also give digytone for a few days.