Hi, My son is having wheezing sound and shortness of breath sounds. We have got XRay, CECT Chest and Bronchoscopy done on Doctor suggestion. All reports are normal. Both sounds are still there. The only change we remember in his diet is introducing full cream milk and Pediasure Zero Sucrose milk. Earlier he used to drink similac isomil. Is it possible for any one or both of Full Cream Milk or Pediasure Zero Sucrose milk causing him allergy?