A 6-year-old unvaccinated child presented with a classic chickenpox rash five days ago, which is now beginning to crust over. However, the child has developed difficulty breathing and a persistent cough. What is the most likely complication, and what are the next steps?
This child may be experiencing pneumonia, a potential complication of chickenpox. Varicella pneumonia can present with cough, difficulty breathing, and chest pain. Immediate medical attention is required. Chest imaging and possibly oxygen supplementation will be needed. Antiviral therapy with acyclovir and supportive care should be initiated.