Cold and Flu Medication | Go to Doctor

Common cold is a mild respiratory infection, while flu is more serious. Flu is caused by influenza virus. In immunocompromised patients, respiratory infections rapidly progress and lead to pneumonia. In general, flu is worse than the cold due to its rapid spread. Doctors diagnose common cold and flu by characteristic signs and symptoms.symptoms of common cold are gradual, with rare high-grade fever and mild to moderate chest discomfort.