Drooling is the flowing of saliva from the mouth. It is a common symptom for numerous medical disorders of nose, ears, throat, and even neurological problems. If drooling occurs in toddlers or new-born babies, then that is perfectly normal.
Loss of hearing occurs when you are not able to hear completely or partially. It can also happen to both or one of the ears. Usually, the hearing loss progresses with age. There are mainly three types of hearing loss.