What are individually wrapped sterile unmediated wound dressing used for...
A sterile dressing.
a sterile dressing
a dressing is moist at wound site and a dry dressing in covering it
To prevent infection.
yes
the flower is sterile
A "sterile" dressing is free of germs prior to use.
dry sterile dressing
Dressing and Bandage
yes
You want sterile dressing for open wounds. If you put a dirty dressing on an open wound, you are increasing the likelihood for infections and diseases. But if all that you have is a ripped t-shirt to put on a wound, that is definitely better than nothing at all.