Q. A 5-year-old boy is presented to your clinic by his mother due to a facial rash that has persisted for the past 5 days. According to the parents, the rash initially appeared as a small red bump and has progressively spread. Upon examination, the child's vital signs are within the normal range. Physical examination reveals the presence of red vesiculopustular lesions and a few shallow, red, weeping ulcers around the mouth. What should be the next step in managing this condition?