I had a "Spit Gland" removed about 10 years ago. It was in my neck/ jaw area. Surgery was for a pre-cancerous tumor in a Parotid gland. Doctors in this particular hospital system were lax in information and care, and still are!

For about a year I had that "First Bite" thing that drove me nuts! Eventually it went away, but even today I still have an occurence (sp). It only lasts a minute or so. It's usually brought on by eating some sort of berries.
It's nothing more than a minor annoyance.
That's all the info I have about it, except that the area of surgery is still very numb yet tender as nerves were cut below my ear.