Easy way to clean the nose

My two years old nephew is suffering from allergic rhinitis. From time to time the sister is checking the nose of her son to know if it is irritated. When the nephew is keep on sneezing, the sister hurriedly wash the nose of her son with water. The sister is felt sorry for her son because she is working mom and only the nanny and her son left at home while she is at work. She is worried if the nanny cleans the nose of her son carefully. She is thinking of an easy way to wash the nose sensitive nose of her son. When she saw this nasopure, the sister is glad. She can leave the house for work with less worries because she is sure that the nose of her son will be safe and clean all day.