Botanical Name: Verbascum thapsus
Energetics: Cooling, moistening
Major Properties: Anodyne (pain relieving), lymphatic
Examples of Uses: oil for earache
Parts Used: Flower, picked at its prime
Mullein leaf oil is most often used as an earache remedy, sometimes combined with garlic and/or St. John's Wort oils. Warm small bottle of oil until just warm and place a few drops in one or both ears. I have never done this, but know of many who have with great success. Be very very sure the oil is not too warm!
I most often use the tincture as a spray for swollen lymph nodes or to rub around my ears, nasal passages, and neck/shoulder pain that may be due to stagnant lymph.
This brief overview merely highlights my observations. There is, of course, a great deal of information that you can find on the Internet or in books. Or better yet - get together with other herbalists and share your experiences!
Please add your own experiences so that together we can create a more comprehensive overview.
As always, if you have a chronic ailment that is not resolving itself or an acute issue, seek the attention of your physician.