This debris can be taken care of by the canalith repositioning procedures, or "the Epley maneuver," . It is done by the Ear-Nose-Throat specialist.
Irritation and intense itching on the inside of the ear canal probably caused by an external ear infection and can be taken care of by an ear drop with corticosteroid and antibiotic in it most of the time.
Please click the green accept button if my answer is helpful to you. A positive feedback rating and a bonus would be encouraging. If you have any further questions please feel free to ask. Take care , Dr.Yetimyan.