Purple lips are mostly due to fire and heat in the body, heat and toxin accumulation, the body on the lips, manifested as purple lips, which is in the case of milder conditions. Purple lips are also seen in more serious conditions, such as hypoxemia in severe hypoxia or severe pneumonia and other diseases, purple lips and cyanosis. In severe cases, oxygen needs to be given promptly to correct the hypoxemia. For the milder condition, belonging to the excess of fire and heat, taking heat-clearing and fire-reducing and blood-cooling Chinese patent medicines can be treated.