Why does the bit above my upper lip still look overfilled after I had the filler dissolved twice? (photo)

I had lip fillers (juvederm) done a while ago, however the filler migrated above my top lip and made it look overfilled and lumpy. I went to a doctor who injected Hyaluronidase above my top lip to remove the filler. He did this on 2 separate occasions, however, there is still a lump above my top lip (although there is no filler there). Will I need to dissolve this area again, will my whole lip need to be dissolved or will this go down naturally?