Eleven patients consented to an oral challenge and all developed a maculopapular rash. The mean interval time between the original cutaneous adverse reaction and evaluation was six years.
Up to 20% of COVID-19 patients develop a rash which is located primarily on the trunk. While a maculopapular rash is the most common manifestation, an urticarial, vesicular (varicelliform ...
2007;18(2):63-77. Patriarca and colleagues [25] performed patch tests and oral challenge tests with aminocephalosporins on 11 patients who had a history of a maculopapular rash to an ...