I do not recommend direct inhalation of these through an Ecig. I do recommend using these for aromatherapy. Burn a couple of drops of each on a candle or in your essential oil atomizer.
Black Pepper Oil Uses: Aching muscles, arthritis, chilblains, constipation, muscle cramps, poor circulation, sluggish digestion. [Julia Lawless, The Illustrated Encyclopedia of Essential Oils (Rockport, MA: Element Books, 1995), 56-64.]Aromatherapy and Quitting Smoking / Smoking CessationRose and Behm (1994) posit that when quitting smoking, it is necessary to reproduce the sensation in the lungs that smoking gives. They found that inhaling Black Pepper essential oil mimicked the feeling of inhaling smoke, thus reducing the cravings.
Frankincense Oil Uses: Anxiety, asthma, bronchitis, extreme coughing, scars, stress, stretch marks. [Julia Lawless, The Illustrated Encyclopedia of Essential Oils (Rockport, MA: Element Books, 1995), 59-67.]
BBC News - Frankincense: Could it be a cure for cancer?Working with frankincense could revolutionise the treatment of cancer. Currently, with chemotherapy, doctors blast the area around a tumour to kill the cancer, but that also kills healthy cells, and weakens the patient. Treatment with frankincense could eradicate the cancerous cells alone and let the others live.