Example of a clinical application of negative pressure wound therapy with instillation (NPWTi) in a patient with necrotising fasciitis (instillation with polyhexanide 0·02%). (A) Reticulated open‐cell foam (V.A.C. VeraFlo™ Dressing; KCI USA, Inc., San Antonio, TX) fitted to the wounds; (B) well‐perfused clean soft tissue after second look and two intervals with vacuum instillation therapy; (C) reticulated open‐cell foam fitted to the upper arm wound, sealed in the first step with two drape strips, with skin protected by hydrocolloid dressing; (D) double lumen SensaTRAC‐pad (V.A.C. VeraT.R.A.C.™ Pad; KCI USA, Inc.) with closed wound.