Katie Widdowson, 23, went to hospital in agonising pain after she hurt her left wrist, while being tied-up in bed by her boyfriend Dean Smith.
Doctors initially dismissed her concerns, saying she had suffered a sprained wrist and sent her home with painkillers.
But the next day Katie was unable to move her arm which had turned black and blistered and she was rushed back to hospital.
Tragically, Katie suffered a heart attack in the ambulance and was pronounced dead shortly after arriving at hospital on January 2 this year.
An inquest heard she had contracted Necrotising Fasciitis, known more commonly as a flesh-eating virus.
The killer disease can be caused by a small cut on someone's skin which can quickly develop into a deadly bacteria.