How effective is Liu Wei Di Huang Wan for tinnitus?

Liou Wei Di Huang Wan has some auxiliary therapeutic effect on tinnitus caused by neurological tinnitus, tinnitus caused by mental factors or tinnitus caused by liver and kidney deficiency, but it does not necessarily achieve the root cause. The Six Flavored Dihuang Pill itself has the effect of nourishing Yin, liver and kidney, so it is also useful for relieving tinnitus. The cause of tinnitus itself is very complicated, so a comprehensive treatment plan is needed. From the perspective of western medicine, if it is neurological tinnitus, drugs that nourish the nerves and improve blood circulation such as methylcobalamin capsules, cipro, ginkgo biloba etc. should be taken. If the tinnitus is caused by cerumen embolism or otitis externa, it needs to be treated according to the cause.