Radiesse is too thick your your lip lines. I would recommend a fine HA filler similar to juvederm or belotero. If it's too thick- it'll show...
peels, lasers, and skin care are great ways to remove these lines as well. Lastly, if you smoke- quitting will help not replace the lines...
This is unfortunate for you. This can be treated as all scars are with Infini, microneedling, PRP, Laser resurfacing. If this was at the time of the necrosis, hyperbaric oxygen therapy would be of benefit, but not now.
Thank you for your question. I strongly advise you to go for a reversible filler which is Hyaluronic acid based like Juvederm, Restylane or Voluma. Both Radiesse and Bellafill are irreversible and if you do not like the results it is impossible to remove 2 months before your wedding...