Normally, swallowing causes a little click or popping sound in the ear. This occurs because a small bubble of air has entered the middle ear, up from the back of the nose. It passes through the Eustachian tube, a membrane-lined tube about the size of a pencil lead that connects the back of the nose with the middle ear.
Health Benefits of Elderflower. Elderflower has been used in traditional medicine all over the world in many different cultures due to its antiseptic and anti-inflammatory properties. The most common uses are for colds and flu, sinus infections, and other respiratory disturbances.
Flavonoids are another ingredient that places elderberries in the category of antioxidant-rich, capable of preventing cell damage. One study suggested that the elderberry extract called Sambucol could shorten flu duration by up to three days. Other traditional uses of elderberry flowers are as external antiseptic washes and poultices to treat wounds, and as an eye wash for conjunctivitis and eye inflammation.