What is the most logical next event?

How to use a nasal rinse
Place a clean, airtight container on a flat surface.
To begin making your nasal rinse, make sure you have a container that will be suitable for mixing and storage.
This container should not contain any dangerous plastics, or be a non-reusable container.
Glass or bpa-free plastic are both good container materials to consider. Always remember to wash your hands before and after creating your nasal rinse.