Can calamus cure tinnitus?

Can. From the point of view of its efficacy, calamus is generally used for tinnitus caused by phlegm turbidity.
Calamus can treat tinnitus. Calamus is a traditional Chinese medicine, which has the effect of opening the orifices and removing phlegm, waking up the spirit and promoting wisdom, and is mainly used for treating dampness obstruction in the middle jiao (dampness obstructing the function of the spleen and stomach), forgetfulness and insomnia, tinnitus and deafness, and dysentery (dysentery resulting in inadmissibility of food and drink, or inability to eat or vomit), and so on.
Acorus calamus has a strong phlegm resolving effect, so it is mostly used for tinnitus with phlegm turbidity. However, the treatment of tinnitus can not be cured by a single Chinese medicine, but also need to be combined with the prescription of evidence-based treatment.
Tinnitus from the perspective of Chinese medicine is generally divided into wind attack, phlegm and dampness, liver and qi stagnation, spleen and stomach weakness, heart and blood insufficiency, kidney deficiency and so on. Tinnitus with phlegm-dampness, which is commonly treated with Acorus calamus, generally manifests as: tinnitus, distension in the ears. The head is heavy as wrapping, the chest and epigastric fullness, cough and phlegm, the mouth is pale and tasteless, and the stool is not refreshing.
Chinese medicine generally uses evidence-based treatment, there may be a mixture of deficiency, cold and heat, so it is recommended to consult a doctor in time when discomfort occurs.