MILIARIA/ HEAT RASH

MILIARIA

What is Miliaria/Heat Rash/Prickly Heat

 

1-3mm erythematous papules (miliaria rubra), pustules (miliaria pustulosa) or crystal-clear vesicles resembling water droplets (miliaria crystallina)

  • Appear on face, scalp and trunk,
  • Due to obstruction of eccrine sweat ducts with leakage of sweat into dermis/epidermis
  • Occur secondary to heat (eg. warm climates) in skin areas with high heat generation or covered by clothing
  • Common, particularly in infants and children because of underdeveloped sweat glands
  • Self-resolving, can be hastened by removal of wraps/clothing
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