barbara joy jones of atlanta's northside hospital gwinnett points out -- these items we use every days a refresher course on their lifespan --dr. barbara joy jones/ atlanta's northside hospital gwinnett: "we should be getting rid of these razors within 5 to 7 uses"dr. barbara joy jones/ atlanta's northside hospital gwinnett:"for toothbrushes we need to get rid of them every 3 to 4 months -- only caveat to that is that if you're diagnosed with flu or strep you need to get rid of them immediately" dr. barbara joy jones/ atlanta's northside hospital gwinnett: "loofah the exfoliator you need to get rid of these every 3 to 4 months they're a breeding ground for bacteria with all the crevices" dr. barbara joy jones/ atlanta's northside hospital gwinnett: "let's talk to women about makeup liquid makeup needs to be replaced every 3 months if you have powder makeup you can keep that up to a year if we're talking about eyeliner and mascara it's time to get rid of these within 3 to 6 months lipsticks you can actually for two years -- powders eyeshadows you can keep those for up to two years as w