Longquan is a traditional Chinese medicine, bitter taste, cold nature, slightly toxic, with blood circulation, remove blood stasis, clear heat and detoxification (remove body heat and toxicity), swelling and other effects, when Longquan is brewed and consumed, the active ingredients of the drug exuded is limited, and can not play a role in therapeutic efficacy. If you need to use Longquan to treat related diseases, it should be used by a doctor after diagnosis. When used as a medicine, it can be used to treat canker sores, dengue (an acute infection in which the skin is red like paint), bruises and other diseases. Due to the fact that Longquan has a slight toxicity, clinically used in the treatment of disease, the dosage should not be too large, so as not to cause patients to have adverse reactions; spleen and stomach cold (spleen and stomach weakness and cold) patients applying Longquan treatment can aggravate the original condition, should not be applied. Patients need to use Longquan under the guidance of a professional physician, so as not to lead to adverse consequences. At the same time, do not blindly increase the dosage, so as not to cause adverse reactions.