How Long Does Pain and Swelling Last After Chin Implant Surgery?

Typically chin implants heal so quickly that I often forget that I've done one on patients that have Face Lifts and other procedures at their 1 month follow up, so what you report seems unusual.  You might want to follow up with your surgeon nad have him check things out to be sure you're OK and healing well.

I can tell you that you can feel the implant for months but I'd describe this sensation as a very dull ache...not pain or severe tenderness.  Similarly, swelling can take up to 3 or 4 months to fully resolve.

It is typical to experience pain and swelling 5-7 days following a chin implant. If you are still experiencing pain after 4 weeks I would try a steroid injection at the point of pain. If the pain persists after 6 weeks then it might be advise to remove the implant and replace it with something smaller.
Sometimes if the implant is too large it can rub on the nerve causing continued pain and irritation. Check back with your surgeon, they are the best to help you with your issues.