Otovent Otovent is a small balloon which the child blows up using their nose. Otovent equalises the pressure & relieves the symptoms in the middle ear. The act of blowing up the balloon helps to open up the Eustachian tube, making it easier for fluid to drain from the middle ear. Your child will need to use Otovent on a regular basis, three times a day, until all the fluid has been drained away. You will often start to see results as early as a few days into using the Otovent. Painless Frequent, regular treatments Effective without drugs Low treatment costs No known side-effects Early, satisfying results