It is recommended to use 999 antiviral oral liquid. In fact, there is no obvious difference between Yuanda Huangshi antiviral oral liquid and 999 antiviral oral liquid in the main components, both of which are clearing heat and promoting diuresis, cooling blood and detoxifying. Besides, 999 is a big brand. I believe everyone has heard of it. Like 999 Ganmaoling, it is also a common cold medicine for many families, so the pharmaceutical industry will be more trustworthy. In addition, there are many online and offline purchase channels for 999 antiviral oral liquid, and the price is more favorable than many similar products, which is relatively more convenient than buying Yuanda Huangshi antiviral oral liquid.