My 11 yr old daughter have been suffering from chronic otitis media since her 1.6 years. Eardrum of both ears, as said by an ENT Dr, have been eroded. He suggested for an instant operation, failing which, he opined, irreparable damage may cause to hearing nerve & CNS. Xray Mastoids says that Sclerosis of mastoid air cells on both sides of ear are detected. Kindly tell me about the treatment and the operation. Is it recoverable?