An upper respiratory infection (URI) is a common illness that affects the nose, throat, and airways. Symptoms typically include a runny or stuffy nose, sore throat, coughing, and sneezing. Other common signs may include a mild fever, headache, and general fatigue. Sometimes, individuals may experience hoarseness or a scratchy throat, along with watery eyes and sinus pressure. These infections, often caused by viruses like the common cold or flu, usually resolve on their own within a week or two. However, if symptoms worsen or persist, medical attention may be necessary to rule out bacterial infections like strep throat or bronchitis.