What is a little yellow tongue coating?

Yellow tongue coating, may be "stained coating", that is, because of eating yellow food or drugs caused by the cause, not pathological reaction. After brushing teeth gargle, yellow coating will disappear on its own. In the disease state,"yellow tongue coating" is called "yellow tongue", or "slightly yellow tongue", is the hot evil fumigation tongue performance. Light yellow indicates that the heat potential is light, more common in wind-heat syndrome, or cold into the heat of the disease process. The external syndrome is mostly caused by feeling evil in nature, or caused by one's own weak constitution. The cold entering the interior to turn heat is caused by the loss of treatment or mistreatment of cold. The thin yellow fur caused by cold can be treated with Jingfang Baidu Powder, Cong Chi Qing Ji Tang and other medicines under the guidance of doctors.