Occasionally an insect or spider makes their way into an ear, creating much stress with their footsteps and buzzing. First aid treatment is to fill the ear canal with warm water with the patient lying on their side. The insect will either float to the surface for easy removal or will at least drown, and become still and quiet, until it can be removed under a microscope.
Safe removal of foreign bodies requires skill, specialised instruments and microscopic vision.
Don’t try and remove them yourself – tweezers or forceps often push the FB in deeper and can cause trauma/injury.