In children, mouth breathing can cause crooked teeth, facial deformities, or poor growth. ... it may become a habit to sleep with their mouths open to accommodate their need for oxygen.

UPMC Children’s Community pediatrics is seeing strep throat and viral upper respiratory infections this week. WellSpan ...

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