exanthema
noun
[ ɪkˈsanθɪmə ]
• a skin rash accompanying a disease or fever.
• "other symptoms are allergic contact dermatitis and generalized exanthema"
Origin:
mid 17th century: via late Latin from Greek exanthēma ‘eruption’, from ex- ‘out’ + antheein ‘to blossom’ (from anthos ‘flower’).