Severe toothache at fixed hours. Remedy.

I am suffering from severe tooth and right side face ache. The first and second premolars in the lower jaw are broken, cavity striken and levelled upto gums. Usually, around evening I start experience dull pain at a pin size point at the backs and side of gums if these teeth but later by the night the pain becomes very severe. This is everyday affair. As I lie down the bed at night, the blood pressure in this area rises and so the pain. It's not exactly a sharp stabbing pain, but pressure and excruciating enough to not let me sleep. I can feel the nerve around this place throbbing in face. Slowly this pain radiates to cheeks. The pain is worst between 11:30 PM and 1:30 PM. Afterwards at that the nerve calm down and pain vanishes slowly. And after that it's back to normal. I tried sensodyne, pain killers combiflam, listerine, ketorol d, clove oil but nothing seems to work. Though there is no pain during day time, even if I lie in the bed. Please suggest remedy.