adrenaline (epinephrine). A hormone of the adrenal medulla which, instilled in the eye, causes a constriction of the conjunctival vessels, dilates the pupil and diminishes the intraocular pressure. See adrenergic receptors; ocular decongestant; naphazoline; neurotransmitter; noradrenaline (norepinephrine).
For tinnitus with hearing impairment, press and massage the hollows behind both earlobes and the jawbone directly beneath the ears; and/or press on the gums behind the wisdom teeth with a pencil eraser, or bite down on a wad of cotton in the same location for several minutes. Do this once per day.
Ways to Use Tea Tree Oil for Plugged Ears. 1  Get one glass of boiling water and add a few drops of tea tree oil to this. 2  Dilute a few drops of tea tree oil with 1 tbsp of warm olive oil and using a dropper, trickle down a little amount of this oil into your ear.