Care Olive Oil (Samaritan) One of the most common complaints seen by GPs is a blocked ear, usually caused by wax that has been pushed into the ear by a cotton bud. As well as the blocked sensation, waxy ears can reduce hearing, cause a ringing sound (tinnitus) and, occasionally, pain. There’s no need to clean your ears with a cotton bud. The ear has its own internal cleaning mechanism. Fats and oils in the ear canal trap any particles and transport them out of the ear as wax.