It usually takes three weeks to recover from vestibular neuritis or labyrinthitis. Recovery happens due to a combination of the body fighting off the infection, and the brain getting used to the vestibular imbalance (compensation). Some persons experience persistent vertigo or discomfort on head motion even after three weeks have gone by. After two to three months, testing (that is,an ENG , audiogram and others) is indicated to be certain that this is indeed the correct diagnosis. A vestibular rehabilitation program, may help speed full recovery via compensation.
In most patients, a diagnosis of vestibular neuritis can be made with an office visit to a vestibular specialist. These specialists include an otologist (ear doctor) or neurotologist (doctor who specializes in the nervous system related to the ear). Tests to help determine if symptoms might be caused by vestibular neuritis include hearing tests, vestibular (balance) tests and a test to determine if a portion of the vestibulocochlear nerve has been damaged. Another specific test, called a head thrust test, examines how difficult it is to maintain focus on objects during rapid head movements. The presence of nystagmus, which is uncontrollable rapid eye movement, is a sign of vestibular neuritis.
One study found that patients who believed their illness was out of their control showed the slowest progression to full recovery, long after the initial vestibular injury had healed.  The study revealed that the patient who compensated well was one who, at the psychological level, was not afraid of the symptoms and had some positive control over them. Notably, a reduction in negative beliefs over time was greater in those patients treated with rehabilitation than in those untreated. "Of utmost importance, baseline beliefs were the only significant predictor of change in handicap at 6 months followup."