When to get medical help

Necrotising fasciitis is a medical emergency that requires immediate treatment. Go to your nearest accident and emergency (A&E) department as soon as possible if you think you have it. Call 999 for an ambulance if you're too unwell to get yourself to A&E. Blood tests and scans may be carried out to find out what's causing your symptoms, although a diagnosis of necrotising fasciitis can usually only be confirmed by having an operation to examine the affected tissue.
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