I am having common cold but for last 2dats I am having toothache, actually I am confused whether it's tooth ache or gum pain due to cold or any underlying cavity, when I am applying pressure on teeth by closing jaw it's not paining but rest all time it's paining, I am confused whether pain is due to cold or cavity or inside cheek is paining, last year I had RCT of one teeth after that there was no issue, but after I had cold fully that side is paining, plz help me how control this pain...