Fight off Seasonal Flu with These 30 Natural Herbs
Cowslip ( Primula veris ) Cowslip roots contain triterpenoid saponins , which have powerful expectorant properties. Thus, you can use cowslip as a decoction to free up trapped phlegm. Make a drink with 1 cup of water per ounce of root. Place in a pot, bring to the boil, simmer for 20 minutes.