What safer add-ons or alternatives help severe pain without sedation?

The short version: topical lidocaine patches are the strongest evidence-based option that avoids sedation entirely, but they only work for localized pain, not for the widespread shoulder-chest-back pain your friend has.

For the kind of severe, widespread pain your friend is living through, the evidence for non-sedating options is thin. Topical lidocaine 5% patches have the best safety profile of anything here. A 2024 survey of 119 chronic pain patients found pain scores dropped from 8.0 to 5.2 on a 10-point scale, with only 6.7% reporting any side effect, mostly itching [2]. A 12-month study of 249 patients with post-herpetic neuralgia showed sustained pain relief with no systemic adverse events [1]. The catch is that lidocaine works locally, on the skin where you put it. It cannot reach deep shoulder, chest, or back pain.

The combination of acetaminophen and an NSAID like ibuprofen or naproxen is the next best bet for avoiding sedation. A 2017 network meta-analysis of 135 trials found that combining acetaminophen with an NSAID produced the strongest morphine-sparing effect after major surgery [3]. A 2017 study in children after tonsillectomy found acetaminophen plus ibuprofen was more effective than acetaminophen plus tramadol, with no increase in readmissions [5]. Naproxen 500 mg twice daily and acetaminophen 1000 mg four times daily showed similar pain relief in a dental surgery trial [4]. Neither drug causes sedation at standard doses.

The CGRP monoclonal antibodies (erenumab, fremanezumab, galcanezumab) are non-sedating and specifically approved for migraine prevention. A 2025 cohort of 417 patients found monthly migraine days dropped from 14.4 to 9.1, with only 3.3% discontinuing for adverse events [6]. But these are injections, expensive, and require a specialist. They do nothing for the shoulder-chest-back pain.

The evidence does not contain a non-sedating option that covers both the widespread body pain and the migraines. For the migraines, CGRP antibodies are the best bet. For the body pain, the acetaminophen-NSAID combination is worth trying first, and topical lidocaine patches can be added for any localized spots of allodynia or nerve pain.

My call: try acetaminophen plus ibuprofen or naproxen for the body pain, and ask a neurologist about CGRP antibodies for the migraines. Add lidocaine patches for any skin-level pain. Confidence: moderate, because the evidence does not test these combinations in someone with both conditions at once.