Steroids Injections to Reduce Swelling After Facelift?

Your surgeon has given you very sound advice.  Steroid injections can be useful in areas of excess incisional inflammation, but should only be used when acute and subacute inflammation have subsided.  The form of steroid used (usually kenalog) works via a catabolic mechanism, breaking down tissue.  This catabolic nmechanism is non-selective and can affect normal tissue also.  Allow a tincture of time to pass and don't watch the water boil!

At 7 weeks post-op, it is common to still have
some swelling. Swelling may not fully resolve for several months, although most
of my patients find that the majority of swelling dissipates within 14-28 days.
Steroid injections should not be rushed into, as they can cause skin and fat
atrophy that may lead to permanent depressions. My advice would be to be
patient, and if you still have significant swelling after another six weeks then
see your surgeon again for a follow-up. I hope this helps. 

Thank you for your question for sharing your concerns with us. Swelling and firmness in the tissues will return to normal as time passes by. Between the first and second week, much of your swelling and bruising will dissipate. It may take more than a month or two for your tissues to fully soften and any residual swelling to resolve. Lymphatic massage maybe an option to help clear the swelling and firmness at a faster pace. I would make sure that you continue to follow up with your plastic surgeon during this period of time and agree on waiting for another six weeks before contemplating steroid injections.