What Can I Do About Long-term Tummy Tuck Scar Pain?

Thanks for the question.
It is unusual to need a compression garment after 8 weeks.
Scar pain can be caused from a number of issues including abnormal healing from the scarring (keloid or hypertrophic scars), injury to cutaneous nerves in the area, or other issues.
Treatment at this point can include:
1. steroid injection - this can be particularly helpful in cases of hypertrophic scars or cutaneous nerve injury. Risks include atrophy or hypopigmentation in the injected area.
2. scar revision - this may help the pain and the appearance of the scar (if this is a problem) but it may also not help your pain and you have to deal with healing another surgery. The pulling sensation you describe may be an area of scar tissue or a deep suture that can be released with this method.
Massage may help but you may be more likely to get improvement with the treatments above.
Speak to your plastic surgeon in depth about your concerns.
I hope this helps.

It is unusual to still require your compression garment and experience burning. Massage may help, but please see your surgeon for a physical examination of your concern. Your scar may require surgical revision.

IT sounds as if you are experiencing a hypertrophic or keloid scar. Quite frequently this will respond to steroid injections with relief of pain in 2-3 days. Consult with your surgeon about this option.