Nurse Assist - Saline Wound Flush is used to moisten wound dressings, debride and clean minor wounds, and to irrigate medical devices. It contains no alcohol, so it will not sting. The solution comes in a non-aerosol spray can that delivers a pressurized stream to gently flush out debris. The spray will even work when the can is upside down. This saline solution remains sterile for two years without the use of preservatives.