Erythema toxicum neonatorum Erythema toxicum neonatorum Erythema toxicum neonatorum (also known as erythema toxicum, urticaria neonatorum and toxic erythema of the newborn) is a common rash in neonates. It appears in up to half of newborns carried to term, usually between day 2–5 after birth; it does not occur outside the neonatal period. Erythema toxicum is characterized by blotchy red spots on the skin with overlying white or yellow papules or pustules. These lesions may be few or numerous. The eruption typically resolves within first two weeks of life and frequently individual lesions will appear and disappear within minutes or hours. It is
Human microbiota to four phyla: Actinobacteria (51.8%), Firmicutes (24.4%), Proteobacteria (16.5%), and Bacteroidetes (6.3%). A large number of fungal genera are present on healthy human skin, with some variability by region of the body; however, during pathological conditions, certain genera tend to dominate in the affected region. For example, "Malassezia" is dominant in atopic dermatitis and "Acremonium" is dominant on dandruff-afflicted scalps. The skin acts as a barrier to deter the invasion of pathogenic microbes. The human skin contains microbes that reside either in or on the skin and can be residential or transient. Resident microorganism types vary in relation to skin