I've seen this claim on Facebook a few times recently (it has 116k shares right now):
I was just reminded of a TIP for avoiding the flu when I worked in the hospitals many years ago. Swab inside of each nostril with Triple Antibiotic cream or gel before leaving your home. (Most germs enter the system through breathing.) I used this tip when my son was a baby and immune deficient and they use it in our assisted living communities during flu season. Just had to share!
Is there any validity to this claim? My initial thought is that flu is viral, meaning an antibiotic ointment wouldn't have any effect.