1. Place the contents of one sachet of Rrinodouche Sal XL in the bottle; 2. Fill the bottle with warm tap water; 3. Screw on the nose adapter cap; 4. Tilt your head forward over the sink, insert the blue end into the nose hole and press gently; 5. Apply gentle and constant pressure on the bottle; 6. Repeat the steps over each nasal orifice until the solution is exhausted.