If you feel a foreign body in the trachea, it is best to go to the hospital for an examination, which requires a chest X-ray or a CT lung examination, and if necessary, a bronchoscopy. If the foreign body is not very large, the foreign body can be removed by bronchoscopy. If the foreign body is particularly large, surgery is needed, and anti-inflammatory and antibacterial drugs should be used to prevent infection after removal. If there is no foreign body, most of them are caused by local chronic inflammatory stimulation, and only foreign body sensation requires appropriate antibacterial and anti-inflammatory drugs. In ordinary times, you also need to pay attention to diet and rest, to improve the body’s resistance to prevent acute infection, you can also use maitake, fat sea, chrysanthemum infusion water to drink. It is also considered to be caused by inflammation of esophagus or esophageal cancer, which needs to be diagnosed by corresponding examination and treated actively.