Botox injections are probably better known for their effect on facial wrinkles, but the prescription drug has also found a use with city workers who want to stay cool in high pressure jobs – it has been medically approved for treatment of excessive sweating, technically termed hyperhidrosis.

Dr Mica Engel, of the Waterhouse Young Clinic in Marylebone, explains that the toxin blocks nerve action, so when it is used in the armpits it blocks the messages being sent to the sweat glands, slowing down production. The treatment takes about fifteen minutes and should take effect after a few days, wearing off after six months – it can also be used for men who suffer with sweaty palms or backs.

Many male patients have been requesting treatment after suggestions from partners or acquaintances and this has caused demand to rocket over the past year, as bankers and stock brokers strive to look professional every hour of the day. Dr Engel says ‘It is only recently that we have been able to advertise it [in this capacity]’ and added that fifty per cent of her male clients were not afraid to ask for armpit injections – where they may have been worried about people knowing they were receiving treatment for facial wrinkles in the past. ‘They all say ‘No one can know we’ve had this done [for facial injections]’, Dr Engel says, ‘But not with the armpits; because it’s a medical procedure, men are happy to tell their friends and colleagues.’