Normally, the nose will not often have a lot of secretions flowing out, especially yellow water, patients who have yellow water flowing out must be sick: the first case, the main consideration is a foreign body inside the nasal cavity, such a situation is only a nose flowing yellow water, and there is a relatively smelly smell, it is recommended that patients go to the hospital to actively remove the foreign body. In the second case, it is mainly considered to be eczema inside the nose, which is related to the individual’s physique, often itching is particularly obvious, and sometimes patients often go to dig inside the nostrils with their fingers, and there is often a lot of yellow water coming out of the nose. The third situation, mainly considered to be the formation of inflammation, due to the patient after the cold or itself has rhinitis, sinusitis, nasal cavity inside the polyps, often appear inside the nose secretion of yellow water, it is recommended that patients actively diagnosed after further treatment.