2 Pcs Inhaler Poy - Sian Nasal inhalant Congestion Dizzy Cold Sinus. Purpose: Inhalant for flu,cold, dizzy, motion sickness. Drop : Apply the affect area. In the bottom of the Inhaler is a small reservoir to hold the essential oil for inhaling. Poy - Sian In healers can be used for Colds,Flu, and to clear.