Home remedies for swimmer’s ear include rinsing the ear with a saline solution or a solution of equal parts white vinegar and warm water, according to WebMD. Other remedies include using over-the-counter ear drops and applying a warm washcloth or heating pad to ease pain in the affected ear.
In instances where the eardrum is not ruptured, gently rinsing inside the ear with a homemade preventative ear drop solution can help prevent bacteria and fungi growth and promote drying, explains Mayo Clinic. The flushing solution should be at body temperature to prevent dizziness and should be injected before and after swimming. If the eardrum is ruptured, it's important to see a doctor for treatment of the infection or injury that caused it, notes WebMD.