 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  still contain some medication. However, do not reuse them. Fold the used patch with the sticky sides together and discard it out of the reach of children and pets to prevent accidental swallowing or application.The side effects of Lidoderm Topical: Redness, swelling, blisters, or changes in skin color at the site of application may occur. These effects usually disappear within a few minutes or hours. If any of these effects last or get worse, tell your doctor or pharmacist promptly. If irritation or a burning feeling occurs, remove the patch(es) and do not reapply until the irritation is gone. If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: blurred vision, mental/mood changes (such as nervousness, confusion), drowsiness, dizziness, unusually slow heartbeat. Get medical help right away if you have any very serious side effects, including: pale/bluish/gray skin, unusual tiredness, shortness of breath, fast heartbeat. A very serious allergic reaction to this drug </s>