Clinical Trial of Pegylated Interferon α-2b Via Nebulization for Treatment of Hand, Foot, and Mouth Disease .

During the study period, patients will continue to receive symptomatic supportive therapy, along with nebulized Peginterferon α-2b injection at a dose of 45 μg per administration, to be delivered on Day 1 and Day 3.

CoDuring the study period, patients will continue to receive symptomatic supportive therapy, along with nebulized Peginterferon α-2b injection at a dose of 90 μg per administration, to be delivered on Day 1 and Day 3.