 Patients will be randomized prospectively to one of two groups. One group will receive 5 mgkg of 1 lidocaine, and the other will receive .9 normal saline, instilled into their VAC sponge 12 hour prior to VAC dressing change. All patients will complete a pain assessment tool prior to receiving the instilled lidocaineplacebo, immediately after the procedure and 1 hour after the procedure. Pain scores will then be compared between the lidocaine and placebo groups. 