The biggest safety concern for Xeomin is relaxing a muscle so much that the muscle feels overly heavy. Through her assessment of your anatomy, Dr. Lamoureux tries to avoid this in formulating your treatment plan. And while she understands that no one likes to bruise after injections, this always a risk. Dr. Lamoureux has a hand-held ultrasound device that helps her to better visualize vasculature under the skin, and she will often use this tool to help mitigate bruising.