There are many cold and flu medicines on the market, but the most effective cold and flu medicine does not exist. Because the cold is a viral infection, for viral infections, there is no good anti-viral drugs, mainly symptomatic treatment. For the cold it is initially manifested as nasal symptoms, nasal congestion, runny nose, sneezing, this kind of watery nose, you can orally take some 999 cold and flu Ling, Shuanghuanglian oral liquid, antiviral oral liquid, blue scutellaria oral liquid and so on the drug, can be antiviral treatment. However, the symptoms can not be relieved immediately, only after a sufficient course of treatment, about 2-3 days later, the symptoms will be significantly reduced, 5-7 days, the symptoms of the cold can be cured. Even without medication, it is a self-limiting disease. So for colds must pay attention to symptomatic treatment, drink more water, more rest, keep the indoor air ventilation, prevent secondary disease infection is the main thing.