Earflo should not be used by children who have a perforated eardrum, an active ear infection, heavy nasal congestion, a bloody nose, or allergies to ABS plastic or silicone. Before use, a doctor should be consulted if your child has had eye, ear, or nose surgery, or experienced any ear trauma. If you have any questions about whether Earflo is a good fit for your child, it’s always best to reach out to your doctor.