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Jun 1, 2023 · Morbilliform drug rash, also called exanthematous or maculopapular drug eruption, is the most common, classically presenting with an erythematous maculopapular rash 1 to 2 weeks after a drug exposure. Urticarial rash, the second most common, presents as annular, pruritic, migratory plaques usually within hours of initial drug exposure. 2.
The rash of measles is described as morbilliform, and this adjective is used to describe similar-appearing eruptions of macules and papules. Frequently, these rashes present in conjunction with fever, and additional nonspecific symptoms include myalgia, rhinorrhea, conjunctivitis, headache, gastrointestinal (GI) symptoms, and lymphadenopathy.
Sep 9, 2004 · A rash that appears as the fever resolves is typical of roseola infantum. In erythema infectiosum “slapped cheeks” and a lace-like rash may occur up to a week after fever. Vaccination history —Having had a measles, mumps, and rubella (MMR) vaccination makes a diagnosis of measles or rubella less likely but does not exclude it.
