The common cold is a mild viral infection of the nose and upper respiratory system. A flu is an acute viral infection that is caused by the influenza virus. Symptoms of a cold include a runny or stuffy nose, itchy or sore throat, cough, congestion, mild headache, sneezing, watery eyes, mild fever, and mild fatigue. The symptoms of having a flu include headache, extreme tiredness, chills, a dry cough, body aches, fever, runny or stuffy nose, sore throat, and nausea and vomiting may occur. Treatment options include pain relievers, decongestants, cough syrups, rest, vitamin and mineral supplements, herbal remedies, fluids, a yearly flu vaccine, medication, acupressure, Ayurveda, Traditional Chinese Medicine, homoeopathy, naturopathy, and reflexology.