Calpol soothe and care saline nasal spray contains isotonic saline solution (salt water), which is saline solution at the same concentration as that found in the body. The spray can be used to help relieve blocked noses in babies and young children. The saline works by softening and loosening hardened nasal mucus, helping it to clear from the nasal passages. The spray helps the child breath more easily and makes it easier for them to feed and sleep. Shipped from the UK to Europe and worldwide door to door.