Treating cuts and scrapes require not just infection prevention but also relief from the not insignificant pain the injury causes. First Aid Only Antiseptic First Aid Spray pain-relieving cleansing liquid kills 99% of bacteria for maximum strength germ killing. First Aid Only Antiseptic First Aid Spray pain-relieving cleaning liquid is 0.5% lidocaine pain relief. Bottle contains 4 ounces of no-sting first aid pain reliever and antiseptic.