The priest will re-examine him on the seventh day. If it has spread further on the skin, the priest must pronounce him unclean; it is in fact a case of serious skin disease.
‘When a person has a swelling, scab, or spot on the skin of his body, and it may be a serious disease on the skin of his body, he is to be brought to the priest Aaron or to one of his sons, the priests.
But when the priest examines it, if there is no white hair in the spot and it is not beneath the skin but is faded, the priest will quarantine him for seven days.
But if the spot has remained where it was and has not spread on the skin but is faded, it is the swelling from the burn. The priest is to pronounce him clean, for it is only the scar from the burn.
But if the scab spreads further on his skin after he has presented himself to the priest for his cleansing, he is to present himself again to the priest.