The ingredients in saline solution are non-iodized salt and boiled or distilled water, typically at a ratio of approximately 1 part salt to 100 parts water. A nasal saline solution includes baking soda in the ingredients.
Saline solutions are commonly used in medical care for wound treatment and as an intravenous fluid. Additionally, they are used to clean contact lenses or to manage nasal conditions. Most saline solutions are available without a prescription, and are found in local pharmacies.
A homemade nasal saline solution combines 1/2 teaspoon of non-iodized salt and 1/2 teaspoon of baking soda with 1 cup of distilled or boiled water, stored in a sterile container for a maximum of three days. Wound care saline solution is made by mixing 1/4 teaspoon of non-iodized salt and 1 cup water, brought to a boil then stored in a sterile, refrigerated container.