Immediately after the lip fillers are administered, it is normal to experience some bruising or swelling but this should resolve after a few days. Your doctor may provide ice packs to deal with the initial swelling. You are advised to avoid alcohol and exercise for at least 24 hours after the procedure. Kissing and using lipsticks or other lip products should also be refrained from in the period immediately after your lip augmentation procedure.
If the pain becomes worrying, you could opt for over the counter analgesics, like paracetamol or ibuprofen. You could continue the cold compress for a few days after the procedure but remember not to apply to much pressure on the lip region. Your doctor may also give you homeopathic preparations to help with fast resolution of the pain and swelling.