People who often get on fire usually belong to the internal heat, damp heat, Yin deficiency body type people. People with internal heat are prone to catching fire. These patients usually like to eat spicy food, usually see dry mouth, bitter breath and bad breath, fear of heat, like to eat cold drinks, dry stools and other symptoms. Damp-heat constitution people are also prone to fire. These patients can be seen dry mouth, but do not want to drink water, sticky feeling in the mouth, appetite in general, sometimes nausea and vomiting, stools and other symptoms. Yin deficiency constitution is easy to fire, this type of constitution usually easy to gum pain, dry mouth and bitter, easy to hunger, like cold drinks, but the appetite may not be good, the abdomen can be noisy (stomach similar to hunger, emptiness with burning sensation) feeling, usually thinner, dry stools. When drinking less water, eating too much spicy food, or when the weather is hot and dry, it is easy to have the fire manifestation. More related knowledge should go to the hospital to consult the Chinese medicine doctor, if there is discomfort should be timely consultation, to avoid self-medication, affecting their own health.