Peppermint is my go-to tea whenever I am sick. Just a few sips of peppermint tea starts to make me feel better. There is plenty of menthol in the peppermint leaves which causes an anesthetic effect on your throat, suppressing your cough. Which is why so many cough drops contain mint.
10 peppermint leaves, 1 tsp honey, 1 cup of boiling water.