1 The application of a coolant spray from a pressurized can to treat soft tissue injuries. The spray contains volatile compounds that evaporate on contact with the skin surface causing rapid chilling, which may reduce inflammation.
2 A method of administering drugs in extremely small liquid or solid particles in a pressurized spray that is inhaled. Aerosol administration is commonly used by asthmatics. It enables a drug, such as salbutamol, to be applied directly to the bronchi and bronchioles, thus reducing the risk of unwanted side-effects, which may accompany systemic therapy.