Use of topical arnica or cold compresses after Botox may help reduce mild bruising and swelling at injection sites.

https://www.scribd.com/document/945020464/Botox-for-Smile-Lines-Where-It-Helps-and-Where-Fillers-Are-Better-214953

Use of topical arnica or cold compresses after Botox may help reduce mild bruising and swelling at injection sites.