A 2-year-old girl is brought in by her parents with a runny nose, cough, and low-grade fever for the past few days. Today, she has developed a red rash on her face. What is the most likely diagnosis and the recommended treatment?
This child's symptoms suggest "fifth disease" (also known as erythema infectiosum), a common viral illness in children caused by Parvovirus B19. It often begins with cold-like symptoms and later involves a distinctive "slapped-cheek" rash on the face. Treatment is generally supportive and can include antipyretics for fever and plenty of fluids.