FWIW if you want a "quick and easy" (not necessarily great/long term) solution, toothpastes like sensodyne do work pretty decently. I had very painful teeth as a kid, reducing (gum/tooth) inflammation + a few weeks of those tooth-sensitivity toothpaste has reduced my sensitivity permanently by a good bit, maybe 60%.
I already use Sensodyne protect and repair (stannous fluoride and potassium something, not Novamin) and while it does certainly help I just want a permanent fix because the sensitivity has gotten really, really tiresome.
Did your dentist give any suggestions? In my case I was irritating my gums while brushing, and switching to an ultra-soft toothbrush let me clean my teeth much better. I very much recommend asking your dentist and using an ultra-soft brush ("soft" brushes are average hard, the naming is atrocious).
