the washing or irrigating of the sinuses of patients who are failing to respond to treatment
Antral lavage Antral lavage is a surgical procedure in which a cannula is inserted into the opening of the maxillary sinus via the inferior meatus to allow irrigation and drainage of the sinus.[1] It is also called proof puncture as the presence of an infection can be proven during the procedure. Upon presence of infection, it can be considered as therapeutic puncture.[2]