I am 6.5 weeks post deep-plane face and neck lift. Will this swelling under chin after necklift go away? (photo)

Swelling after facial surgery can take many months to resolve.  Sometimes gentle massage to the area can be helpful, but generally it just takes time to improve. This area is relatively easy to address if you ultimately do not get the result you are looking for, but I would recommend waiting at least 4-6 months before considering any further intervention. 
All the best,

I know it is hard to be patient, but it can take many months for all of the swelling to resolve. If after 6 months you still do not see improvement, there are office procedures that can be done. However, be sure to discuss your concerns with your surgeon who knows you best. Good luck!

Hello,
Thank you for your picture. If you have any questions, you should speak with your surgeon. If you were my patient, I would suggest a neck strap to be worn to help reduce the swelling you are concerned about under your neck. 
Not all patients heal the same and not all facelifts are the same. You can look at the healing process of a patient of mine - Case # 0033 in the link provided below. 
Hope this helps!
Sincerely, 
Dr K

You had a comprehensive neck lift based on the fact that your platysma was sutured together.  It is possible some residual preplatysmal fat was left behind and sometimes additional liposuction can correct this.  The other issue is if your submaxillary glands are exposed and bulging.  These would require a neck lift revision to correct. 

At 7 weeks you are still very swollen. Give yourself ample time to heal and be patient. Remember, that skin quality plays a large role in facelift results and this can happen even when everything is done "right"

Thank you very much for your question and
photograph. At close to seven weeks’ post-op, you can still expect residual
swelling. This should slowly resolve over the following couple of months.
However, without a pre-op picture, it is hard to provide any more meaningful
advice regarding your specific results. I recommend being patient with your
healing process, giving yourself six months out from the facelift and neck lift
before judging the final results. In the meantime, though, I would bring your
concerns to your operating surgeon for his/her advice.