Lidoderm is a prescription medication used to treat pain caused by shingles (herpes zoster) and diabetic neuropathy. It is a local anesthetic patch that contains lidocaine, which works by blocking pain signals from the nerves in the affected area. Uses: Lidoderm is used to relieve pain caused by shingles (herpes zoster) and diabetic neuropathy. Shingles is a painful rash that occurs due to the reactivation of the virus that causes chickenpox. Diabetic neuropathy is nerve damage caused by diabetes that can result in pain, tingling, and numbness in the hands and feet. Dosage: The Lidoderm patch should only be applied to intact skin where the pain is located. The patch should be left in place for up to 12 hours within a 24-hour period. The recommended dosage for shingles pain is one or two patches applied to the affected area once a day. For diabetic neuropathy, one patch should be applied to the affected area for up to 12 hours, followed by a patch-free period of 12 hours. Demographics: Lidoderm is FDA approved for use in adults, but studies have shown it to be safe and effective for use in children as young as 12 years old. It is not recommended for use in pregnant or breastfeeding women. Side effects: Common side effects of Lidoderm include skin redness, rash, and itching at the application site. These side effects are usually mild and go away on their own. Serious side effects are rare but can include allergic reactions, difficulty breathing, and changes in heart rate. Interactions: Lidoderm can interact with other medications. Patients should tell their doctor about all medications they are taking, including over-the-counter drugs, vitamins, and herbal supplements, before using Lidoderm. Lidoderm should not be applied to skin that has been treated with other local anesthetics, as it can increase the risk of systemic toxicity. Generic options: Lidocaine patches are also available in generic form. However, patients should talk to their doctor before switching to a generic version of Lidoderm, as the efficacy and safety of generic versions may vary. In conclusion, Lidoderm is a local anesthetic patch used to treat pain caused by shingles and diabetic neuropathy. It is FDA approved for use in adults and has been shown to be safe and effective for use in children as young as 12 years old. Patients should follow the recommended dosage instructions and be aware of potential side effects and drug interactions. Lidocaine patches are also available in generic form, but patients should talk to their doctor before switching to a generic version.