The constant ringing itself is not a disease but a symptom that something is wrong in your listening area. Therefore, there is a little medical treatment for ringing in the ears.
Yoga is one of the best methods among all the methods mentioned above. However, each method requires a silent background, but Yoga does not only need a quiet environment, but it will be more effective if you perform Yoga in some green area. Therefore Yoga is the most efficient technique of all.
As discussed above, there is no permanent cure for this condition. Most of the time, it disappears by itself. But sometimes it becomes so annoying that you start looking for relaxation methods. If this is the case, try the methods mentioned above, as these methods will reduce the irritating buzzing in your ears. However, if you don't want to try any of these methods, you can use some devices such as hearing aids, sound masking devices, and others to get rid of this ringing. If you are not satisfied with these methods, you can take antidepressants (prescribed by your doctor) to relieve your stress.