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.
Usually, Heroin can be detected in a urine test for a minimum of two to three hours or for a maximum of 2-3 days depending upon the dosage or purity of the substance. But in cases relating to excess intake and heavy usage, it can be detected in the urine for as long as 7 days until it is flushed out from your system completely.