Ramsay Hunt syndrome, a reactivation of the shingles virus in a nerve beside the ear, is a rare but urgent cause of tinnitus: treatment started within about three days is linked to better recovery of the facial nerve.
It is worth knowing about specifically because it is time-sensitive and easy to mistake for something less serious in its first day or two.
If this might be happening now
If you develop ear pain, a rash or blisters on or around one ear, and new tinnitus — especially alongside any facial weakness or asymmetry, however mild — get seen the same day: your GP or an urgent care clinic, or an emergency department if neither can see you that day. Mention the rash and the ear together, and when each started. This is one of the clearer cases in tinnitus where delay has a documented cost, and the reasons are set out below.
What it is
Ramsay Hunt syndrome (also called herpes zoster oticus) happens when the varicella-zoster virus — the same virus responsible for chickenpox, which can lie dormant in the body for decades — reactivates in a nerve near the ear, the facial nerve's geniculate ganglion specifically. This is the same virus reactivation process behind ordinary shingles, but affecting a location and set of nerves that produces a distinctive combination of symptoms not seen in shingles elsewhere on the body.
The recognizable symptom pattern
Mayo Clinic describes the most common presentation as a painful rash with fluid-filled blisters in, on, or around one ear, frequently accompanied by facial weakness or paralysis on the same side, along with — per Mayo Clinic's own symptom list — tinnitus, along with possible changes to hearing, taste, and balance. The facial paralysis happens because the reactivated virus causes inflammation and swelling that compresses the facial nerve as it passes through a narrow bony passage on its way to the face — the same general mechanism, incidentally, that's proposed for Bell's palsy, which shares a very similar presentation without the identifiable viral rash.
The balance changes can include vertigo, and a hearing change that comes on quickly deserves the same urgency as sudden hearing loss from any other cause.
Why the timing of treatment matters
This is worth stating plainly: prompt treatment is the standard advice. A 2018 review recommends combining an antiviral with a corticosteroid, which reduces inflammation and swelling in the affected nerves, and calls early diagnosis a crucial factor so that treatment can start as soon as possible. What is at stake is lasting damage: a 2001 review notes that, compared with Bell's palsy, people with Ramsay Hunt syndrome often have more severe paralysis at onset and are less likely to recover completely.
The best-known study behind the timing advice was published in Annals of Neurology in 1997. It looked back at 80 patients treated with the antiviral acyclovir plus the steroid prednisone:
- Of 28 whose treatment began within 3 days of the facial paralysis starting, 21 (75%) recovered completely.
- Of 23 whose treatment began more than 7 days after onset, only 7 (30%) did.
The difference in facial nerve recovery was significant, hearing recovery also tended to be better with early treatment, and it made no difference to the facial nerve whether acyclovir was given by drip or by mouth.
How strong the evidence for the drugs is
The timing evidence above is observational: patients were not randomly assigned to early or late treatment, and people treated late may differ in other ways. The evidence for the drugs themselves is thinner still, and it is fairer to say so than to imply otherwise.
- Antivirals. A 2008 Cochrane review found only one randomised trial, of low quality and with 15 participants, comparing intravenous acyclovir plus steroids against steroids alone. It found no statistically significant difference. The reviewers concluded there was no evidence that antivirals improve outcomes, while noting that one small, under-powered negative trial does not show they are ineffective, and that side effects belong in the decision.
- Steroids. A companion Cochrane review found no randomised trials at all of steroids added to antiviral treatment, and called for them.
- Later pooling. A 2024 meta-analysis combined 2 randomised trials and 7 cohort studies, 474 people in all. The odds of not recovering were lower with antivirals — odds ratio 0.68 (95% CI 0.37–1.27, p = 0.22) — but the interval includes no effect. The authors read it as showing effectiveness and call for further study to confirm it.
- A dissenting appraisal. A 2011 review of the literature in Otology & Neurotology calculated odds ratios for the different treatments and reached the opposite conclusion to Cochrane: that combination treatment including antivirals should be given.
None of this is a reason to delay or decline treatment. Combined antiviral and steroid treatment is the standard, the best-known cohort found a large gap between early and late treatment, and what is at stake is the facial nerve and the hearing. It is a reason to expect a doctor to recommend treatment on the strength of clinical experience and observational data, and not to read an incomplete recovery as proof of a mistake.
Why it's easy to miss early
The combination of ear pain, a rash that might initially look like a minor skin irritation, and new tinnitus can be mistaken for a simple ear infection in the first day or two — especially before facial weakness, the more obviously alarming symptom, becomes apparent. Since Ramsay Hunt syndrome is a recognized cause of facial paralysis in its own right (the second most common cause of facial palsy, according to a 2016 review of the literature), any combination of ear pain or rash with even mild facial weakness or asymmetry deserves prompt medical evaluation rather than a wait-and-see approach, given how directly treatment timing affects the outcome.
Who's more at risk
The risk of Ramsay Hunt syndrome increases with age and with a weakened immune system — consistent with how shingles generally becomes more common later in life, as the immune system's control over the dormant virus weakens. Anyone who's previously had chickenpox is theoretically at risk, since that's what establishes the dormant virus in the body in the first place. A shingles vaccine, where appropriate for your age and health situation, is a recognized way to reduce this risk, per Mayo Clinic's guidance.
What tends to happen to the tinnitus specifically
In cases that are recognized and treated promptly, associated symptoms including tinnitus, dizziness, and vertigo often improve within a few weeks alongside recovery of facial function — though, as with other causes on this site, recovery isn't universal, and some degree of lasting hearing change or tinnitus can persist, particularly if treatment was delayed. This mirrors a pattern seen with other acute, treatable causes: early evaluation and treatment materially improves the odds of full recovery.