In case of sinusitis in early pregnancy, it is recommended to visit the ENT department, where the degree of sinus inflammation needs to be assessed. If the inflammatory reaction is mild and the clinical symptoms are not particularly obvious, it is recommended to rinse the nasal cavity with saline or physiological seawater, and the inflammation will gradually subside in most patients after the rinse treatment. If the inflammatory reaction is severe and rinsing alone is not effective, medication should be considered, and antibiotics are more commonly used. However, because of the pregnancy period, the medication should be used with special caution, and a joint consultation with an obstetrician and an ENT doctor is required before choosing the safest medication with the least side effects. During the course of medication, regular follow-ups are needed to observe the changes in the condition to clarify the effect of treatment.