text: if you can, pay the $100-200 to get it filled...if it's infected already, you need it extracted - maybe $120-180.   \n\nIf you just "Live with" the infection, it could affect your immune system and make you sick in other ways. \n\nWorst case scenario - the cavity becomes an infection, the infection abcesses, the abcess becomes a cellulits (swelling) which can theoretically, if ignored, swell enough to close off your airway.   Take your pick... \n\nalong w/ calling welfare, try finding a dental school; this will be cheaper than private dentists...also non-profit clinics exist - i work at one in New Hampshire.\n\nI'm amused by the guy who answered "go see your doctor."    A lot of people who can't afford a dentist don't have insurance - dental or medical, so they can't do that either.  At least in the US....