Actually, as a DOCTOR, I do tell my patients (especially the patients that work with kids or have kids of their own) to use neosporin in the nose. Apply with a Q-tip once daily for 10 days. Neosporin is a salve and inhibits viral proliferation within the nasal cavity. The flu is a virus that can only be spread through the mouth and nose. So by inhibiting the proliferation, you may in fact prevent the flu.
