How to treat and find the cause of lumps and bumps left after facelift?

I personally don't think it's a good idea to massage entry postoperative wound healing with massage or ultrasound. Nevertheless, over time all of this should subside.

Dear angel, thank you for your question.Swelling after a facelift may persists from
weeks to months, causing bumps or asymmetries to appear. In San Diego, we monitor our patients closely
for one year to address any issues. Follow up with your surgeon to check if this
is swelling versus something else and if treatment is indicated. Best of Luck.

Hematoma is a known complication of facelift surgery. After it resolves, the scarring under the skin may lead to the lumps you are noticing. Fortunately, this resolves with time and the thick and lumpy skin smooths out and softens. It can take time, however, sometimes a year, or even longer. Massaging the area can help. Kenalog is also helpful. Patience is of the essence here. All the best.

Having a hematoma in the postoperative period can prolong the healing process. If the hematoma was not completely drained, your body had to get rid of the excess blood products. It is possible the lumps and bumps you notice are because of the hematoma. However, at 2 months you are still healing. It takes a full year for a scar to mature and there is a process of remodeling the collagen which may contribute to that lumpy bumpy feeling. Please wait a little longer. 

At two months it his still healing. I think you have to give it some more time to heal and follow closely with yrou surgeon. Good luck.