Electronic Cigarettes Vaping was initially thought to be safer than smoking. However, several cases have recently been reported from the US and the UK about serious illness in people using e-cigarettes. They developed lung inflammation which was non-responsive to traditional medication, requiring hospitalization and intensive care. The liquid inserted in e-cigarettes was found to contain lead, nicotine and other potentially cancer-causing chemicals. The flavoring used in e-cigarettes has been found to cause severe lung irritation. The only advantage with e-cigarettes in that there is no release of smoke, so family and friends do not suffer the ill effects of passive smoking.