Medically reviewed by Corinne Savides Happel, MD A rash around a child's mouth is not usually not due to food allergies. It ...

Discover the 6 most common causes of mouth rashes in children beyond food allergies, from acidic foods to infections, and ...

Children who consistently breathe through their ... creating forces that further narrow the face and jaw. The constant open-mouth posture also changes how teeth erupt and align.