Symptoms of inflammation of the eustachian tube, manifested as ear stuffiness, hearing loss, tinnitus, etc. Inflammation of the eustachian tube is mostly caused by upper respiratory tract infection, nasal inflammation, etc., which can lead to congestion and swelling of the mucosa of the eustachian tube, causing the eustachian tube to lose its ability to balance the pressure inside and outside the tympanic chamber, i.e., negative pressure inside the tympanic chamber. The disease can be seen in the examination of the tympanic membrane invagination, poor mobility, conductive deafness on electrical audiometry, acoustic impedance B-curve or C-curve, treatment requires antibiotic therapy, such as amoxicillin clavulanic acid potassium, azithromycin, etc., and hormonal drugs, such as prednisone, etc. Nasal drops 1% furosemide nasal drops to contract the mucosa of the eustachian tube, so that the air into the drum chamber, so as to achieve the role of drainage, can also be nasal The nasal spray can also be used to reduce the congestion and swelling of the mucosa of the eustachian tube.