Hematomas are not that uncommon, and by definition, when they occur, it can take much longer for healing and bruising (which becomes discoloration) to resolve. You are about 2.5 months after surgery, well within what I would consider a normal period of healing, so you should have...
A history of cancer is not necessarily a contra-indication to facial cosmetic surgery. In this situation timing is everything. If you are actively in treatment or shortly after treatment, it is best to wait until your condition has stabilized. A remote history of cancer is less of a...
A face lift at your age is a bit early. There are so many other alternatives which are noninvasive. Consider ThermiTight and Fat transfer.