February 2024 in “Curēus” In this study, researchers found that using regional nerve blocks (STN and SON blocks) for anesthesia in platelet-rich plasma treatment for hair regrowth resulted in significantly less pain and better analgesia compared to the more common ring block technique.
This study found that follicular unit extraction can be safely performed without bupivacaine and nerve blocks, using lignocaine with adrenaline as an effective anesthetic for patients with certain grades of androgenetic alopecia.
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September 2017 in “Dermatologic Surgery” The cephalic approach for nerve blocks is less painful than the anterior approach during hair restoration surgery.
March 2025 in “Pain Physician” This retrospective study found that applying local skin precooling before scalp nerve block significantly reduced injection site pain during PRP mesotherapy for patients with androgenetic alopecia, compared to those who did not receive precooling, thus improving patient comfort and compliance.
January 2019 in “Headache” This source discusses the use of nerve blocks as potential treatments for head and neck neuralgias and primary headaches, highlighting their effectiveness and various applications, including during intervals between onabotulinum toxin A injections.