Oral saline is a solution of salt and water that is taken by mouth. It is used to replenish fluids, electrolytes, and other essential minerals in the body, particularly in cases of dehydration. Oral saline solutions are formulated to mimic the composition of body fluids and are designed to help replace the fluids and electrolytes lost due to dehydration, illness, or other factors. They can be used to treat dehydration in children and adults, and they can also be used as a component in oral rehydration therapy (ORT) for the treatment of diarrhea, vomiting, and other digestive issues. Oral saline solutions are typically clear and colourless, and they can be consumed directly or mixed with other liquids, such as water or juice. It is important to follow the dosing instructions provided by a healthcare provider when using oral saline solutions, as the appropriate amount can vary depending on the specific condition being treated and the intended use.