MinuteClinic is a substitute for doctor's offices, retail store-based physicians, and expensive healthcare services. They offer affordable and convenient healthcare services for common illnesses like flu, cold, fever, and headache. Their clinics are located in approximately 600 different locations across the United States and are staffed by nurse practitioners and physician assistants. While they provide medication for common ailments, they may not be equipped to handle emergency situations or have access to a patient's full medical history, which can lead to potential complications.