I have continuous ear sound since last 4months>>...

Treatment of Ringing sensation or abnormal sound in ears :
You need to consult an ENT doctor for assessment of any abnormal signs , after that the doctor will prescribe medications for you such as Ibuprofen when needed as well as Betahistine or antidepressants for severe cases such as Brozac .
What are the causes of Ringing or tinnitus sensation in ears ?
There are many causes which can cause ringing sensation in your ears such as the following :

• Infection .
• accumulation of wax in the ears .
• Middle ear disease .
• High blood pressure .
• Depression .
• Side effects of medications .

What are the causes of tinnitus ?

• Ear wax .
• Bactrial infection .
• Viral infection .
• Nueritits .
• Middle ear infection
• Inner ear diseases .
• Hypertension
• other causes .

What are the tests needed for ear tinnitus ?
Clinical assessment for any signs and symptoms with Complete blood count and otoscope .