Insurance saleswoman Yvonne Mayer, 29, was unable to speak or eat for two days after ripping her windpipe when she blew the three foot horn during a street party in Cape Town.
The next day shocked doctors diagnosed her with a ruptured throat and ordered her to rest it completely to allow it to heal.
The bizarre injury is the first known vuvuzela-related accident since the World Cup kicked off last week.
Yvonne, from Cape Town, said: 'I had never blown a vuvuzela before but was given one at work and was going to watch the first South Africa match so thought I'd take it along.
'I was walking towards the Fan Park in Cape Town and blowing it as hard as I could when suddenly my throat started to hurt.
She should of..
Now there's a woman who..
Didn't she used to star in that movie, Deep..
..naw. I can't do it. I must preserve what little dignity is left on this site. I'll just leave it at her being only one in thousands of terminally stupid and annoying people in South Africa who are ruining it for football fans watching all over the world.
(But not for me, old son. I have got about 16 hours of pre-recorded ESPN Tractor Pulls and Monster Truck shows to catch up on.)