Is a hard lump after Juvederm in the lips a concern? (Photos)

Small lumps following injection with dermal fillers that don't resolve with massage can be dissolved if they are of concern to you. Your injector should be able to dissolve just the lump, leaving the rest of your lips and filler alone. The blue-tint is called the "Tyndall Effect", and is common when filler is very close to the skin.

You likely need to have it dissolved.  If you want to try using a warm compress and trying to massage it first you can and you may have enough improvement with that.  If it does have to be dissolved it may not need to be redone as a small amount can be injected directly into the lump.  Please speak to your injecting physician to discuss your options.