I noticed about a week ago a bad smell from my nose.its not there all of the time but it comes and goes,mainly in the mornings or when I blow it.
Also my eye hurts and I have a constant pain in my temple and my teeth,I'm pretty sure its something like sinusitus,I have been taking painkillers which eventually work for the pain in my head and teeth but the smell stays,
Will over the counter medication work or will I just have to go to the doctors?

I would say you should see your doctor. It's most likely a sinus infection and you'll need an antibiotic.

You have all the classic symptoms of a sinus infection. If it does not clear up (and it sounds like it hasn't) then I would suggest seeing the doctor for antibiotics. The smell is the infection.