deflorescence

def·lo·res·cence

(dē'flō-res'ents), Do not confuse this word with efflorescence. Avoid the misspelling/mispronunciation defluorescence.Disappearance of the eruption in scarlet fever or other exanthemas. [L. de-floresco, to fade, wither, fr. flos (flor-), flower]

deflorescence

(dē″flŏr-es′ĕns) Disappearance of an eruption of the skin.