12Managing Comorbidities (sleep, anxiety, depression)

FTreat the company tinnitus keeps

One of the most useful clinical reframings in tinnitus care is to stop asking only ‘how do I quieten the sound?’ and start asking ‘what is making this person suffer?’ For most distressed patients the answer is not the loudness of the tinnitus but its companions: poor sleep, anxiety, low mood and sound intolerance.

These comorbidities and the tinnitus form a vicious cycle. Tinnitus disturbs sleep; sleep loss worsens mood and amplifies attention to the sound; low mood and anxiety in turn make the tinnitus more salient and intolerable. Breaking the cycle at any point can ease the whole. Treating the comorbidity is often the fastest route to a calmer, functioning patient, even when the tinnitus percept itself is unchanged [2013].

TInsomnia: hygiene, CBT-I and short-term melatonin

Sleep disturbance is among the commonest and most treatable tinnitus complaints, and it tightly tracks distress [2007]. First-line management is behavioural, not pharmacological. Sleep hygiene — consistent rise time, limiting caffeine and screens, and using low-level background sound to reduce the contrast that makes tinnitus prominent in a silent bedroom — addresses the most modifiable factors.

The most effective specific therapy is cognitive behavioural therapy for insomnia (CBT-I), which the European insomnia guideline recommends as first-line treatment ahead of hypnotics [2017]. Where a short pharmacological bridge is wanted, melatonin is a reasonable, well-tolerated, time-limited option, particularly for the poor sleeper, as discussed in the supplements module [2011]. Long-term benzodiazepine or z-drug use is best avoided given tolerance, dependence and the risk of rebound on withdrawal.

CAnxiety and depression: therapy and medication

Anxiety and depression are both consequences and amplifiers of tinnitus distress, and they are independently treatable. Psychological therapy, especially cognitive behavioural therapy, is first-line and benefits tinnitus distress as well as the mood disorder. Where a mood or anxiety disorder meets the threshold for medication, antidepressants are appropriate — for the comorbidity, not as a tinnitus cure.

This distinction matters. The Cochrane review of antidepressants found no good evidence that they reduce tinnitus itself, but they have a clear role when clinically significant depression or anxiety coexists [2012]. Treating the depression lifts the patient’s overall burden and, by reducing limbic amplification, frequently makes the tinnitus easier to bear [2011]. Suicidal ideation in severely distressed patients must always be screened for and acted on.

CHyperacusis: the frequent travelling companion

Hyperacusis — abnormal intolerance of ordinary environmental sound — commonly accompanies tinnitus and can be more disabling than the tinnitus itself, driving avoidance and social withdrawal. A key counselling point is to discourage overuse of ear protection in quiet environments, which paradoxically worsens sound intolerance by lowering tolerance thresholds further.

Management mirrors tinnitus management: education, gradual sound enrichment to rebuild tolerance, and CBT-based approaches for the fear and avoidance that maintain the problem [2018]. Recognising and addressing hyperacusis alongside tinnitus often unlocks progress that targeting either symptom alone would not.

TA comorbidity-first management plan

In practice this means a deliberate screening step at the first tinnitus consultation: ask specifically about sleep, mood, anxiety and sound tolerance, ideally with brief validated tools. The findings then shape the plan — CBT-I for the insomniac, psychological therapy with or without an antidepressant for the depressed or anxious patient, sound-tolerance work for the hyperacusic.

This is the core of stepped, multidisciplinary care covered later in the chapter. The unifying message is that the most effective tinnitus interventions are frequently aimed not at the sound but at the suffering around it [2019].