How should I take care of the brand during healing?
There are two main schools of thought as to the aftercare of scarification in general. Many artists believe that a LITHA ("leave it the hell alone") method is best. Assuming that the initial cuts are well done, by leaving it alone, the body will generally heal a fairly consistent wound. The downside of this method is that if the person's genetics are not prone to keloiding, that the amount of raised scar will be fairly minimal.
The other school of thought on scarification aftercare is to irritate the wound (using a variety of methods ranging from simply picking the scab, to rubbing it with steel wool or a toothbrush, to using chemical and exfoliant formulas). Irritating a healing scar will greatly increase the amount of scarring, but at the same time, almost always leads to inconsistent scarring (that is, different parts of the scar will raise different amounts).