Otoliths, also known as benign episodic positional vertigo (BPPV), are the most common clinical vertigo disorder that occurs when an otolith in the vestibule of the inner ear is dislodged and displaced into the semicircular canal. The main manifestation is a brief vertigo attack when the head position is changed. The common position changes are: lying down, climbing up, turning over while lying down, raising the head, lowering the head, bending over, etc. The vertigo attack often lasts only a few seconds to a few tens of seconds, and rarely exceeds one minute. So if the vertigo appears without moving the head or lasts longer, it should not be otolithic. The treatment is simply to reset these dislodged otoliths to the elliptical sac to eliminate the vertigo attacks. Although otoliths can occur from adolescence to old age, the disease is most prevalent around the age of 50, especially in women, and is most likely to develop around the time of menopause, mainly due to the decrease in estrogen levels at this time. Other associated factors are: head trauma, infection, prolonged bed rest, habit of sleeping on one side, migraine, diabetes, and other ear diseases. Why do I feel dizzy and light-headed after resetting treatment? Before the otoliths are completely absorbed by the body, 75% of patients will experience dizziness and light-headedness, clinically known as “residual symptoms”, which usually last for several hours to several days. These residual symptoms usually last for a few hours to a few days. Recovery can be accelerated by taking appropriate medication.