MILK CRUST
Any roughness on the scalp must receive immediate attention. This roughness, or milk crust, is entirely avoidable; it is the result of accumulated oil and dirt. When it has formed a complete crust or cake, it may quickly become eczematous and require a physician's advice; however, in the beginning, at the first sight of brown patches or roughness, oil the scalp thoroughly at night with vaseline or cold cream, which should be gently rubbed off in the morning.
This vaseline or cold cream should be applied repeatedly, several nights in succession, followed by the morning's gentle rubbing and daily washing of the head. Often the washing with water must be entirely avoided; only sweet oil or vaseline being used in those cases where the crusting seems to be persistent.