I have made lip reduction on both lips one month ago and now my upper lip is uneven. Can I inject HA filler to correct the uneveness?? If so, how mich do I have to wait from the intervention to have i jectable fillers? Are two months enough?? Is it true that the filler may migrate because of the post-operation scars? the uneveness is at the bottom of my upper lip. there is a hole at hte right side pf my upper lip when my mouth is closed.