To prevent future earaches in your child, keep their ears clean and dry, especially after showering and swimming, to avoid the probability of an infection. Avoid exposing your child to secondhand smoke, which can irritate the ear's lining and increase infection risk. Encourage proper hand hygiene to prevent colds and infections, and consider breastfeeding as it helps boost immunity. Ensure your child is up to date with vaccinations, like the flu shot and pneumococcal vaccine, which help reduce ear infection risks. Limit pacifier use after six months, as it can increase ear infection risk.