Source :
https://pn.bmj.com/content/early/2020/11/27/practneurol-2020-002734.abstractMenière's disease causes paroxysmal rotatory vertigo, due to endolymphatic hydrops, an accumulation of endolymph in the endolymphatic space of the labyrinth. Its major symptoms are attacks of rotatory vertigo lasting minutes to hours, with unilateral hearing loss, tinnitus and aural fullness. As the disease progresses, attacks happen less often, but hearing loss and tinnitus gradually become permanent.
This is a good review highlighting that the vertigo associated with Meniere's can last hours (not just minutes) and that the attacks become less frequent over time but there are long term sequelae including chronic tinnitus, hearing loss and vestibulopathy. It also highlights some new diagnostic and treatment approaches.
This can be a difficult condition to treat, good review on this disease.