I have a lump in my lip from Juvederm!
I usually tell my patients to give any filler about a week to mature. Sometimes an injection could cause a bruise that’s deep and not very visible. Approximately a week, gives the tissue time to recover from any small bruises. Any unusual or large bruises should be reported to your doctor right away. Here is more information on Juvederm problems.
You could try massaging it gently at this point but if, in a day or two, it’s still bumpy and he doesn’t want to even it out for you, I think consulting another doctor about Juvederm for the lips would be very reasonable.