Minerva: December 2000
A distinction needs to be made between ‘henna tattoo’ and ‘BLACK henna tattoo’. The injury seen on the 9 yr old boy was caused by ‘black henna’. Black henna contains little or no henna, instead it contains Paraphenaline-diamine, or PPD, a strong sensitizer which causes severe allergic reaction in a large percent of the population.
It's part of a vascular surgeon's job to advise smokers to stop smoking, and 98% of members of the Vascular Surgical Society of Great Britain and Ireland do give advice (Annals of the Royal College of Surgeons of England 2000;82:424–7). Only a minority give out written information, however, and even fewer (11%) run an antismoking clinic or group. Over half of the surgeons in this survey also counsel their junior staff about smoking. Whether the juniors take any notice could be the subject of another investigation.
Researchers from Oklahoma took advantage of an “animal damage