Geraint Mullins was at home watching TV when he noticed a pimple on his neck and popped it.
But in less than a day, the spot had turned into an abscess and he soon developed sepsis.
The NHS describes sepsis as a life-threatening reaction to an infection which begins to damage tissues and organs.
The Newport man, now 24, required emergency hospital treatment and two operations for the issue which happened when Mr Mullins was 17.
He feels “lucky” to still be here and is now trying to raise awareness about the condition to ensure others are aware of the danger signs.
Video edited by Jack Grey
