Cold, flu and influenza are the health problems caused by different type of viruses or bacteria that affect the upper respiratory tract in human. The effect can target our nose, sinuses, pharynx, larynx and the worst part is our lungs. Symptoms may start at day 2 and last until 3 weeks. Usually, physicians will prescribe anti-histamines or decongestant medication, nasal irrigation, intranasal ipratropium, pain killer and antibiotics in some cases.
