How long does Neuramis lip filler last? Is there a way to increase the speed in which my body dissolves the filler? (photos)

Hi there, I got 1ml Neuramis Deep lip filler done and I believe it has migrated above my top lip. Due to covid restrictions in my area and wanting to also try for a baby I’m unable to get them dissolved. The nurse who did the filler said Neuramis Deep lasts for 18 months plus? I’m wondering if this is true as fillers I have had in the past have last 12 months at the most. How do I increase the speed in which my body dissolved the filler naturally? Thanks