If you still have the lump 4 weeks after your lip filler, i would return to your doctor to have the lump dissolved with hyaluronidase.
Injection to dissolve filler
If the asymmetry isn't gone yet, an injection of a HA dissolving agent can be used. Often an early lump is from a hematoma and will resolve over a week or two
I will suggest seeing your provider for further evaluation. If overfilled product is the case, he/she can inject hyaluronidase to dissolve some of the product that was injected.
I have a large hard lump in the middle of my top lip from Juvederm. Will it soften up over time? If so, how long?
options are allow body's metabolism to degrade the filer over 9 months or inject HA dissolver at an expense..