way back when i was a student, i saw a medical stud cleaning the pressure area with a so-called ZONROX, a chemical used to remove stains from cloths. they only explain it quite, that it contain some mineral (never had the chance to figure it out) that'll help heal the sore fast.
honeybee also is being used and correct me if im wrong, to rebuild the tissues and the muscles. they say, honeybee contain huge proteins and as we all know, protein 'bulks' our body

bt as the saying goes, prevention is better than cure: do log-rolling every 2hrs, masssage prominent bone areas, keep patient 'dry' and out of moisture.