Apply the first Halo adhesive (2a) by lining up the Halos ring and centering over the first nostril. Apply pressure around the septum and lip area first, then around the nostril to the outside of the nose. The second Halo may need to have the interior edge of adhesive trimmed so that it does NOT overlap the first Halo ring (2b). Overlapping the adhesive onto the metal ring itself can cause a leak. Ensure you have a good seal by firmly pressing onto the skin (the adhesive is pressure sensitive). You may find that you can trim the ends of the Halos™ tape a 1/8" each evening until you are satisfied with coverage and adherence (See Pro Tips under Step1), depending on size of nose and needs. Leftover trimmed tape can be reapplied in areas you feel need extra support.