Many Possible CausesAnother concerned netizen added that the picture Dr. Hafizah shared also could be caused by a different condition called ‘Terra Firma-Forme Dermatosis’ (TFFD).
It is a benign skin condition that presents itself with brown to black plaques, similar to dirty skin. If the condition is confirmed to be TFFD, gentle swabbing with 70% isopropyl alcohol can solve the problem.
She further attached a journal article on TFFD for any further clarifications for interested netizens.Hence people, do take note of the changes in your children’s skins or yours,