Thanks for writing in.
A ringing sound in the ear ( also known as tinnitus
) along with partial hearing loss
can occur in a variety of conditions like ear wax
, middle ear problems ( an infection in the middle ear or some fluid in the middle ear or uncommonly a tumour), Meniere's disease ( when there is a lot of fluid which accumulates in the inner ear
), a side effect of certain medications and several other causes.
The lump like thing just below the left ear is likely to be a group of enlarged lymph nodes. These lymph nodes which act as defense barriers in our body often enlarge in response to infection.
It is unlikely that this is related to the lump on your left knee, which could be an abscess or a sebaceous cyst.
This ear condition, if left untreated, can lead to several complications. I would suggest you see an ENT specialist
at the earliest and get an evaluation done. Proper treatment needs to be instituted as fast as possible.
Hope this helps.