An alternative method to unblock a stuffy, congested nose is by using menthol. Menthol is an organic plant extract, sourced from the peppermint plant and various other mint plants. The oil is extracted from the leaves through the process of distillation, but is also commonly produced synthetically. Therefore it is important to buy from a trusted source.

Menthol has been widely used in traditional medicine practices largely throughout Asia, in particular the renowned menthol Tigerbalm. The earliest recording of the use of menthol dates back to 23AD when Pliny, a Roman scientist discovered the use of peppermint oil. Evidence of the cultivation of menthol was also discovered in several pyramids throughout Egypt. However, menthol was not introduced to the Western world until the end of the 19th century.

Add a few crystals to a small bowl of hot (not boiling) water.  A powerful vapour is produced.