A caused by impacted cerumen (earwax) is a common nuisance that affects hearing, causes mild discomfort, and triggers a sensation of fullness. Olive oil is an internationally recognized, evidence-based home remedy recommended by healthcare systems like the NHS to safely soften hardened earwax . It allows the wax to naturally migrate out of the auditory canal without the risks associated with mechanical tools. How Olive Oil Clears Ear Obstructions