A nasal aspirator is a medical device used to suction secretions from the nasal passages; it is primarily utilized to treat symptoms such as nasal congestion, runny nose, and difficulty breathing. When using a nasal aspirator, it is essential to select an appropriate product, use it correctly, maintain proper hygiene, avoid overuse, and closely observe the infant's reactions. When used correctly, nasal aspirators are considered relatively safe. In addition to using a nasal aspirator, other methods can be employed to alleviate nasal congestion and runny nose, such as cleaning the nasal passages, adjusting indoor humidity, sleeping on one's side, applying warm compresses, and increasing fluid intake. If the infant's symptoms persist for an extended period or are accompanied by other symptoms, prompt medical attention should be sought.
The primary function of a nasal aspirator is to suction secretions from the nasal passages, thereby keeping the airways clear, relieving symptoms such as congestion and runny nose, and improving breathing.

