There are a few ways to reduce swelling, bruising, and pain and also speed the recovery. This includes icing and Arnica. However, you should speak with your injector about their specific recommendations. The video below is also helpful.
Thank you for your question. Each office has their own protocol as to how they manage pain and risk for swelling and bruising. Icing certainly can help vasoconstrict the vessels prior to injection, to help with the risk of bruising, and after injection help with swelling.