Final answer:
An exanthematous (morbilliform) drug eruption typically occurs 3 to 5 days after drug administration. It is characterized by initial cold-like symptoms with high fever, followed by a macular or papular rash. In moderate or severe cases, additional symptoms may occur and the duration of the disease is approximately 7 days.
Step-by-step explanation:
An exanthematous (morbilliform) drug eruption typically occurs 3 to 5 days after drug administration. It is characterized by initial cold-like symptoms with high fever, followed by a macular or papular rash.
In moderate or severe cases, the fever falls suddenly 2 to 5 days after onset, but recurs later. Other symptoms may include jaundice, petechial rash, mucosal hemorrhages, oliguria, epigastric tenderness with bloody vomit, confusion, and apathy. The duration of the moderate to severe disease is approximately 7 days, followed by a rapid recovery.