Q: The woman next to me at work sneezes in sets of two, through-out the day. When is the appropriate time to say “God bless you”? Do I have to say it with every sneeze?
A: A single blessing to a serial sneezer is plenty. Saying “God bless you” or “gesundheit” is a time-honored courtesy, but not a requirement; these phrases are simply a kind response to the (usually) mild annoyance caused by a sneeze. My advice is to acknowledge this chronic ah-choo-er’s first sneeze duo of the day with a blessing and leave it at that. There’s not a lot more you can do other than give her the name of a good allergist or offer her tissues when she runs out.