Typically, otolithiasis is not afraid of water in the ear.
Also known as benign paroxysmal positional vertigo, the anatomical basis of otolithosis is the detachment of otoliths attached to the otolithic membrane, which fall into the endolymph within the middle of the inner ear and flow with the endolymph.
When there is a change in head position, the semicircular canal movement drives the endolymph to move, causing the otoliths to move with it, which in turn stimulates the semicircular canal hair cells, causing the body to experience intense vertigo.
Generally, water in the ear does not enter the inner ear. The eardrum exists between the external auditory canal and the inner ear, and an intact eardrum does not allow water from the external auditory canal to enter the inner ear.
When the eardrum is broken, water from the external auditory canal can enter the middle ear cavity and may irritate the inner ear, inducing vertigo.