MrS
I wonder about your woollen suits you allluded to in another thread irritating the rash...

When my son crashed a few weeks ago, the nurse recommended Vasoline petroleum jelly to prevent scabs from going hard - but that was NOT for deep road rash.

When I had my first major crash a couple of years ago, the doctor put some sticky dressing on - it sounds a bit like the secondSkin Withm describes.

I don't know its medical name as I buy it from the chemist by the half metre, and not in a labeled box.

I've described it here before, and someone knew the name for it in America...

But its like breathable, extra-wide tape. You stick it over the whole rash area and it stays there - through sleep, through showers. The scab forms and heals underneath and in a coupe of weeks you take it off - using baby oil to ensure it doesn't undo the healing. The brand new skin will be very sensitive to sun initially, so be careful you don't burn it.
No scarring... it was amazing (hence why I always keep it in the house now and use it for all grazes and scratches my sons bring home!)

Good healing, MrS