How do you know if you are having an injection from Juvederm Voluma? (Photos)

I got Juvederm voluma injected 9 days ago in my cheeks (Inlove with the results) but I’ve noticed a red rash and small bumps (no pus or anything). I’ve had voluma before and had nil issues. There’s no swelling, no fever just small red bumps that are so itchy! I’m not sure if this is an infection and I pray it’s not! The bumps are across my cheek not As bad hear the injection site. They arnt painfu/ at all just itchy! I do sometimes get dermatitis but I’ve never had it on my cheeks before! Help!