The rules of evidence-based medicine from a leading expert in otolaryngology, Ksenia Klimenko, will help the reader understand why the ears hurt and how to treat them correctly: – age-related hearing loss – where it comes from and how to treat it; – different types of pain and different diseases – what is important to know about otitis media; – it doesn’t hurt, but you can’t hear – why hearing decreases; – ears and teeth – when you visited the dentist and your ear hurt. This book is a revised part of the publication “In the labyrinths of the ear, nose and throat. Hidden mechanisms of work, unobvious relationships and useful knowledge that will help you “hold out” to a visit to the doctor.”