Kamwo tea:  
Is told to be beneficial for dry cough or throat, fever. 
Cute story: 
My mother in law says that when she had a cold or got sick her mother would give them this tea before bed time, rub their feed with tiger balm and let them sweat out the cold or virus. 
The price is for a tea bag . 
For a whole box with ten bags the price is : 99kr