Mentha piperita 

Respiratory Infection, Bronchitis 

Peppermint (etym. Piperita - Mentha) is a sterile hybrid mint, a cross between watermint and spearmint, with a high menthol content, often used in tea and confectionery. Peppermint is the oldest and most popular flavour of mint flavored confectionery (including chewing gum).

Inflammation (swelling and reddening) of the bronchi.

Peppermint as related to Bronchitis