The perforation in your eardrum
indicates infection of the middle ear.
Keep your ears dry; in many cases if the perforation is small, it heals with time.
Avoid exposure to cold.
Eardrum perforation causes hearing loss
and buzzing sound in the ear(called tinnitus
Consult an ENT Specialist
. He will get an X-Ray of mastoid and routine blood tests done.
If the bony part of your ear's normal, it will soon gets resolved.
If its infected, he/she'll start treatment.
And don't you worry, it gets cured.