Signs, Causes, and Treatment of Nicotine Poisoning Horror X rays show trapped vape stuck in man's intestine after he swallowed & left it there for 6 weeks despite illness Sharing this in case it helps another parent act faster than I did. , 2 days ago, My 3 year old accidentally smoked a vape someone left lying around something that didnt belong to me or my husband Do you really know what's in your vape? There's no safe vape. Besides nicotine, vapes contain many other harmful substances. Formaldehyde, arsenic and lead have all been found inside common vapes.