I've always used alcohol on me and my ointment. No infections. I didn't know you could use peroxide. I thought it was for dying ones hair.Alcohol on scratches and other open wounds? OUCH!!! That stings which is why I use peroxide - no sting! I just keeping pouring it on until the bubbling stops, that means it has cleaned it out thoroughly. I have used that on my children's skinned knees etc and they never got infections, they were fascinated by the bubbles and never complained about having me "doctor" them as other kids do, because it did not hurt more than it already did. Those kids are now grandparents themselves and have used the same remedy without complaints. It's also less expensive than having all that other stuff around and ointments are easily contaminated.