Tinnitus or acamprosate are useful. While there is tentative evidence for benzodiazepines, it is insufficient to support usage. Anticonvulsants have not been found to be useful. Steroid injections into the middle ear also do not seem to be effective. Botulinum toxin injection has been tried with some success in some of the rare cases of objective tinnitus from a palatal tremor. Caroverine is used in a few countries to treat tinnitus. The evidence for its usefulness is very weak. The use of sound therapy by either hearing aids or tinnitus maskers helps the brain ignore the specific tinnitus frequency. Although these
Tinnitus masker for hearing loss. Sound generators (masking devices) have received Class II approval from the FDA. However, they are considered to be “experimental, investigational, or unproven” therapies. There is one report of a bone conduction vibration masker that transmits a 60 Hz fundamental with adjustable harmonics up to 1000 Hz. A commercial device based on the phenomenon (Aurex3) was approved by the FDA. A new development in tinnitus management is the use of high audio (10 kHz-20 kHz) or ultrasonic (20-100 kHz) via bone conduction. A 2012 Cochrane Review stated the available studies do not show strong evidence of the efficacy