A chef has created an off the scale chicken dish so spicy he claims it can cause ‘facial paralysis’.

Muhammad Karim, 34, has to wear a gas mask whenever he prepares his Atomic Kick Ass Drumsticks to stop the powerful vapours knocking him out.

His super-hot meal registers a whopping 12million on the Scoville heat measurement scale and is almost three times as a powerful as pepper spray used by police.

‘We have made sure that our staff are trained in first aid so we can look after the customers before the paramedics arrive,’ a director and executive chef of Bindi restaurant in Grantham, Lincolnshire explained.

‘The body gets this massive rush which can paralyse their face for up to 30 minutes and give them body shakes. The last guy who tried it was sweating all over.’

‘He was slapping his face to try and feel anything but it was paralysed. It is the adrenalin and the body trying to sort itself out.’

Only 20 people have so far accepted the challenge to eat 10 drumsticks in 15 minutes with a prize of ￡100 on offer for anyone successful.

The meal contains two of the spiciest chillies in the world, including the Carolina Reaper which hits 1,569,300 on the Scoville heat measurement scale.