Summary

A Foam Dressing, consists of sterile polyurethane foam, hydrocolloid adhesive (polystyrene, sodium carboxymethyl cellulose, etc.), which is an opaque polyurethane dressing that is permeable to vapors but partially occlusive to liquids. It is typically used to cover wounds over bony ridges or near inflamed skin, especially in burns, open wounds, pressure ulcers,venous ulcers, diabetic, etc.