noun (n)

• any red eruption of the skin(noun.state)

  Synonym:
  efflorescence, rash, skin rash
  

  source: wordnet30
• A rose-colored efflorescence upon the skin, occurring in circumscribed patches of little or no elevation and often alternately fading and reviving; also, an acute specific disease which is characterized by an eruption of this character; -- called also rose rash.(noun)

  source: webster1913