Idiopathic sudden sensorineural hearing loss (SNHL) is defined as a decline in hearing less than or equal to 3 days, affecting 3 or more frequencies by 30 dB or greater with no identifiable aetiology. This kind of sudden idiopathic hearing loss is usually unilateral, sometimes the patient may also complain of other symptoms such as aural fullness, tinnitus.This sudden idiopathic sensorineural hearing loss is a real medical emergency.The treatment of this entity is a subject of debate for many years. Also it is believed that, the patients from this idiopathic SNHL also recover spontaneously. There is no specific protocol proposed for this aetiology. Steroids, antiviral agents, anti-coagulants, anti- inflammatory drugs are all proposed to be of therapeutic importance in treatment of sudden SNHL.There are controversies regarding treatment of sudden idiopathic SNHL with oral steroids. There are also studies strongly supporting the use of oral steroids.