Earwax MD uses an innovative, patent-pending technology designed to clean away ear wax from the ear canal. Simply fill the ear canal with the ear drops, wait 15 minutes and then begin the rinsing process with the included ear rinsing bulb. In cases where earwax buildup is excessive, two back-to-back treatments may be necessary. Watch the instructional video below to see the step by step process of how to effectively remove ear wax build-up in the human ear canal.