Does an infectious disease doctor treat sinus infections?

An infectious disease doctor, or an infectious disease specialist, is a medical professional who specializes in the diagnosis, treatment, and management of infectious diseases. While sinus infections are indeed infectious diseases, they are typically treated by primary care physicians, such as general practitioners or family doctors, or by otolaryngologists (ear, nose, and throat specialists) who have expertise in the medical and surgical management of ear, nose, and throat conditions.