Oti FAES BoriSEC® is an ear spray with boric acid that dries excess water from the external auditory canal and relieves the feeling of blocked ears caused by water that can accumulate during daily hygiene, water sports, or after spending time in humid environments. Benefits: Evaporates excess water. Restores its physiological pH. Protects the skin that covers it. How to use: It is administered using a spray applicator that is specially designed for use in the external auditory canal.