KerraPro Heel Please note quantities refer to the number of single pads and not packs KerraPro is indicated for the prevention of pressure ulcers in at-risk patients as part of a pressure ulcer prevention programme. KerraPro Heel can be used with the long side under the arch of the foot for mobile patients or for patients in the sitting position. For immobile patients in the lying position KerraPro Heel can be used with the long side under the lower calf. It is also effective on elbows and knees.