The aspiration of nasal snot into the stomach usually does not cause any reaction in the body, because the composition of nasal snot is mainly water, protein, exfoliated cells and dust in the air, etc. These components usually do not have any effect on the body and do not cause any harm to the body. If there is a lot of nasal mucus and it is very sticky, sucking it into the pharynx may cause uncomfortable symptoms in the pharynx, such as foreign body feeling in the pharynx, coughing and coughing up phlegm. If these symptoms occur, you can use medication to dilute the nasal mucus, such as Oronema or Cherno, and then drain it out. If the nasal discharge is yellow and sticky, anti-inflammatory drugs can also be used to reduce inflammation. If the nasal secretion is heavy, you can also use nasal sprays such as Endosol or Reynocort to reduce the secretion in the nasal cavity.