<unk>  usually appears during the first week of life, most often on day two. It may develop several days or weeks later in premature babies. The rash has a variable appearance, ranging from a few blotchy red spots to many yellow-white bumps and boils. The classic presentation is 1-3 mm, firm, yellow-white bumps with a surrounding red halo. The rash is often described as "flea-bitten." There may be only a few or many lesions, and they may be clustered or widespread. The rash often appears on the cheeks first and may later spread throughout the face, trunk, arms, and legs. Lesions most often appear on the thighs, buttocks, and trunk. The palms and soles are not affected, likely because the skin in these areas does not have hair follicles. Individual lesions may grow and shrink over hours or days. They usually fade within a week or two. The rash may recur within the next few weeks, but this is rare.
Erythema toxicum neonatorum
Papular eruption of blacks
Bradyphrenia
Prurigo gestationis
Erythema dyschromicum perstans
Noma neonatorum
Arbor vitae 
Cutis marmorata telangiectatica congenita