When should lidocaine plasters be avoided?
• Lidocaine 5% plasters should not be applied to inflamed or injured skin (such as active herpes zoster lesions, atopic dermatitis, or wounds) or to mucous membranes. • Lidocaine 5% plasters should be avoided in people taking class I antiarrhythmics (e.g. flecainide, mexiletene) or other local anaesthetics.