Bluebell root does not prevent colds.
It is the root of the cruciferous plant woad, which can clear away heat and remove toxins, cool the blood and benefit the pharynx. It can be used in the treatment of fever, sore throat, fever and spot (warm and hot poison invading the human body resulting in skin spots and plaques), mumps (equivalent to mumps), dengue (an acute infectious disease with reddened skin like paint), carbuncle and swollen skin.
The treatment of external wind-heat or the first signs of warm disease, fever, headache and sore throat, can be used alone, or with honeysuckle, thorn mustard and other drugs to evacuate the wind-heat with; if the wind-heat attack, sore throat, often with XuanShen, MaBo, burdock, and so on.
From the point of view of the efficacy and function of this product, Banlangen has a therapeutic effect on colds caused by external wind-heat, but this drug does not have the effect of preventing colds.
Before taking this medicine, it should be used under the guidance of a Chinese doctor, and should not be purchased and used on its own, so as not to delay the condition.