5 months post Facelift with a scalp scar that had healed and now reopened. What should I do?

problems with healing after a facelift, lite-lift, quicklift, life-style liftincisions should not reopen this long after your surgery,this should be seen by your doctor and evaluated

It is unusual for an incisionline to open after 5 months. It’s most likely an ingrown hair or a retainedsuture that your body is trying to reject. Please visit your plastic surgeonfor treatment.

Healing after a
facelift can take variable amounts of time, but I agree, 5 months is a little
too long. It sounds like there may be some underlying reason your scalp scar
has reopened. Often times there are some dissolving stitches that can work
their way to the surface and create healing problems. The other issue is that
sometimes hairs can get caught up in the stitches and closed up into the wound,
especially if your hair is long or very dense in the area. These, too, can then
surface later and cause healing problems. Either way it would probably be best
to get back into your plastic surgeon’s office and have them look at it. Most
likely they just need to extract those and then things will heal up fine. The
chances of this being in any way cancer related is extremely low, so don’t lose sleep over it but just get back in to be evaluated. 

I recommend you see your surgeon as soon as you can to have this resolved. By this time, your incisions should have healed closed (although the resulting scar can take about a year to mature).

It is definitely not normal for a wound to re-open 5 months after surgery.  You should contact the surgeon who performed your facelift to be evaluated and determine the cause.  It is possible it could be an ingrown hair, as you mentioned, but there could be other causes as well.