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Introduction: Dermal “micro-injections" of botulinum toxin A (BTX-A) treatment can improve facial flushing and erythema in patients with refractory rosacea. We present a case of a patient with longstanding papulo-pustular rosacea with flushing, refractory to laser, topical and systemic therapies, where intradermal microdroplet BTX-A injections successfully controlled erythema and flushing. Case Description: A 49-year-old White female with a 4-year history of refractory papulo-pustular rosacea presented with bright, central facial erythema and telangiectasias after failing multiple 595 nm pulsed dye laser, topical (azelaic acid 15% gel, 0.025% tretinoin cream, and metrocream 0.75%) and systemic (isotretinoin 20 mg daily, spironolactone 25 mg daily and doxycycline 100 mg twice daily for 14 days) treatments. At treatment 1, 20 U of BTX-A was injected intradermally (0.05 mL of 1.25 IU/0.1 mL per microdroplet) to erythematous lesion. Treatment 2 was performed at her 4 week follow-up were we administer 15 U of BTX-A intradermally (0.05 mL of 1.25 IU/0.1 mL per microdroplet) . The patient was seen 4, 8, and 16 weeks after her second treatment were no BTX-A was administered due to a significant reduction in erythema and lasting results. Discussion: Significant clinical improvement and patient satisfaction was achieved. No adverse events were reported after treatment aside from mild, localized injection site pain during the procedure. BTX-A administered as intradermal microdroplet injects can be a safe and efficacious option in the treatment of refractory rosacea erythema. Microbotox may be an effective adjunct, especially when topical and systemic therapies have failed. |
