Essential oils are natural, but they're not as safe as you think. 1  1. Skin discoloration, burning and sores. 2  2. Danger to babies and pregnant women. 3  3. Skin irritation and itching. 4  4. Danger to small pets. 5  5. Dangerous interactions with preexisting conditions. 6  6. Illness or death when swallowed.
Narcotics is a term used to describe all illegal drugs. It depends which narcotic you are taking. Like marijuana will take anywhere from a week to a month depending on your usage and metabolism. where as cocaine will take about three to five days depending on usage and metabolism. All are different.
Most drugs can be detected in urine around 3-5 days give or take a few days. I'm not completely sure on Remeron. It has a long half life so it may hang around longer but I dont think you'll have anything to worry about because they wont be likely to test for it.