I had h pylori a few years back which caused severe indigestion, the h pylori was eradicated with antibiotics and I started feeling better, anyway, today while I was on a train some old guy sneezed in to my hand it was so gross! There was like all saliva and flem on my hand, I wiped it with a tissue but was unable to wash my hands until I was home, after around 4 - 5 hours, is it possible my h pylori may come back as it was a while before I was able to wash my hands