Consult a healthcare professional before using mullein, especially if you have asthma, COPD, are pregnant, breastfeeding, or take medications
Use dried mullein leaf or flower from a reputable source
Make mullein tea by steeping 1 to 2 teaspoons of dried leaves or flowers in hot water for 10 to 15 minutes
Strain the tea very well through a fine mesh strainer, coffee filter, or cloth to remove tiny plant hairs
Drink the tea warm, up to 1 to 3 times daily if tolerated
Use mullein tincture only as directed on the product label or by a qualified practitioner
Take mullein capsules only according to the manufacturer’s instructions
Use mullein steam inhalation only with caution and avoid if steam worsens your breathing
Stop using mullein if you develop rash, throat irritation, nausea, or worsening cough
Avoid smoking mullein or using it in any form that irritates the lungs
Seek urgent medical care if you have chest pain, severe shortness of breath, wheezing, blue lips, or coughing up blood