after i switched to washing my hands with antibacterial soap (the orange kind they use in hospitals), i've gone from a bimonthly cold-analog disease to maybe being sick twice a year
I was getting sick constantly, and it turned out I had chronic sinusitis, and surgery made it much much better.
(Just friendly advice, I know nothing about your situation).
glad it was just poor hygiene :P
Regular mouthwash and even antibiotics won’t get rid of it, but a solution of vinegar, lemon juice and salt will.
Maybe you could get the same quality of life improvement without decreasing other's.