I got one very visible lump right in my lower lip after my very first session and panicked. Nearly ran to the ER. But my injector calmed me down and explained that small irregularities are common in the first 10 days as swelling goes down unevenly. Sure enough, by day 12 it had smoothed out on its own. However, I also learned that persistent lumps need professional attention. Reading about lip filler treatment aftercare taught me that you should never try to break up a lump yourself with random tools. Leave it alone, ice gently, and at your two-week follow-up the injector can use a massage technique or a tiny bit of dissolver. Nine times out of ten, time fixes everything.