"Special damages: This generally refers to out-of-pocket expenses. These may include medical and like expenses such as ambulance fees, loss of earnings to the date of trial, and other incidental expenses such as home help. Because of their very nature, special damages are generally easily quantifiable.

General damages: This covers such matters as loss of earning capacity in the future, pain and suffering, loss of enjoyment of life and disfigurement. They are of their very nature incapable of precise mathematical calculation. The court looks at these individual aspects of general damages and assesses the suitable amount of money that is fair and reasonable to both parties to compensate the plaintiff."

http://www.lawhandbook.org.au/handbook/ch18s01s03.php#