Hi, I Had Botox 6 Days Ago, I Get It

Hi, I had Botox 6 days ago, I get it in between my brows, my smile lines and my neck. I bruised pretty bad this time and it is starting to disappear except for my neck. The injection site bruise is the size of a half dollar with a pimple like bump in the middle..what can you tell me about this? I am using Anica gel on all bruising..please advise, Thank you