Hi Ariel,
Healing depends on the individual. What may take someone 3 weeks may take someone else 6 weeks. In what way isn't it healing? Is it still swollen? Have the stitches not disappeared? Is it sore? What does your Doctor say? For several months after my total glossectomy, every medical profession that looked into my mouth said "That's healing nicely". Being better and totally healed are very different.

As for the numbness, yep, a year on after my surgery I'm still numb on one ear, part of my neck, part of my chin, the middle of my bottom lip and several other places. It takes a long time for the nerves to heal, or they might never recover. Again it all depends on each individual person as there are so many unseen factors involved that we just can't control.

Oral cancer teaches you a lot about patience.