Old Thyroid Scar That is Still Red and Noticeable, How Can I Get Rid of it?

Our treatments use combination therapy to improve the epidermis and dermis for most deep scars. The options available for acne scars depend on the character of your scars, in terms of topography and contour. We see atrophic and hypertrophic acne scars, as well as scars that have hypo and hyperpigmentation. We begin each scar evaluation with an assessment of scar quality and subtype. Our main concern is rebuilding collagen and that is why we use a HIDEF protocol that includes combination therapy. Morpheus 8, scar subcision, fibrous release, fractional laser, CO2 laser, Thulium laser, PDL Vbeam laser, and fractional resurfacing can be used in addition to TCA Cross and chemical peels to further improve skin. Patients should start Melarase AM and Melarase PM for active hyperpigmentation. Always begin with a consultation to decide whether early subcision should be started.

Best,
Dr. Karamanoukian
Realself100 Surgeon

Without photos and an examination, it would be total conjecture as to what you should do. If surgical intervention were deemed prudent, then excision of the scar with immediate steroid injections and close monitoring for at least a year and a half with possible repeat steroid injections (even monthly), is one option. Using radiation therapy in addition to the surgery is another. These 2 scenarios would also employ silicone gel sheeting for a protracted period of time. 

Keloid and hypertroophic scars are very difficult to deal with.  After 20 years if it is flat and not significantly red, it may be best to leave it alone. Without an exam I could not be sure.