Hi,Safaque,
Thanks for query,
There might be more than one problems in the ears of your mother,
1,She might have
fungal infection in the ears as there is itching.
2,Chronic matiditis,there is bony projection behind the ears called
mastoid infection in this
sinus leads to
mastoiditis.
3,There may be autosclerosis in the three small bones in the middle ears causing hearing problem.
Go for antibiotic course,cleaning of external ears will remove fungus,put anti fungal drops.
If medical treatment does not give relief then she should go for surgery..
Ok and bye.