It sounds as if you have keloid scars which are typified by progressive growth, pain and itching in response to relatively minor injuries. Hypertrophic scars occur in response to relatively significant injuries (large wounds or burns with protracted healing) that tend to remain stable in size once they are formed.
They are extremely rare in face lift scars but do occasionally occur. Most commonly this occurs if skin demonstrates delayed healing.
The pain and itching usually responds within a couple days to intralesional steroid injections. The appearance is a different problem. This may respond to topical pressure, silicone gel sheeting, & massage. Typically the scars respond by becoming flatter but not necessarily thinner.
If the keloids respond to steroid injections, you could consider scar revision with steroid injections intra-operatively.
If they don't respond, you may have to consider off-label injection of 5FU by a qualified provider.
Radiation therapy is a last resort and rarely used in the head and neck region.
