Efficacy of Lidocaine Patch in Acute Musculoskeletal Pain in the Emergency Department

Inclusion Criteria: * Subject's age is greater than or equal to 18 years old * Subject is able to speak English * Subject has chief complaint of musculoskeletal pain lasting less than or equal to 7 days * Subject's area of greatest pain isolated to one body part * Subject does not have prior Emergency Department visits recorded on electronic medical records for the chief complaint Exclusion Criteria: * Subject's age is less than 18 years old * Subject is pregnant or breastfeeding patients * Subject cannot speak English * Subject has multiple traumatic injuries or injury requiring consultation with the trauma service per study facility's guidelines * Subject has cellulitis or infection overlying the injuries * Subject has open wound overlying the injuries * Subject's chief complaint is caused by penetrating injury * Subject has absolute contraindications to study medications, including anaphylaxis to lidocaine or nonsteroidal antiinflammatory drugs, history of active GI bleeding or recent coronary artery bypass graft surgery precluding nonsteroidal antiinflammatory medications, severe hepatic disease (hepatitis, cirrhosis in current chart or prior history or elevation in liver function tests to clinically significant levels in past 6 months), severe kidney disease (Creatinine clearance less than 30 milliliters or history of chronic kidney disease stage 3 or worse), congestive heart failure. * Subject has medication contraindications such as concurrent use of medications lis…