Sinusitis may lead to nausea, vomiting, clinically, mainly seen in the following cases: 1, sinusitis long-term large amounts of yellow pus nasal reflux into the pharynx, and then into the gastrointestinal tract, may stimulate the patient’s gastrointestinal response, clinically, nausea, vomiting can be seen, children are more common, patients with chronic gastroenteritis in the past may be more common. 2, sinusitis is seen in the acute sinusitis, the whole group of Sinusitis, the patient’s symptoms are very serious, clinical dizziness, headache, fever and other related performance. 3, sinusitis produces a large number of toxins, and a large number of bacteria into the patient’s blood, resulting in patients with systemic bacterial infections, and even sepsis, sepsis and other related conditions, the patient can be nausea, vomiting. In short, sinusitis, if nausea, vomiting, most suggest that the patient’s condition is more serious, this situation clinically need to increase the anti-inflammatory treatment, improve the nasal irrigation treatment, at the same time to give gastric protection and other comprehensive treatment.