thanks for contacting HCM,
hi , you required the surgery of the both ear and surgery of the ear are so many types depending on the disease of the ear , hearing loss
( how much) , status of the ossicles
etc. and in this time prefered grafting for your left ear may conchal caartilage graft. consult the better ENT surgeon for your disease. disease is curable there for there is no need to tense.
yes it is safe to go for the surgery of both ears.