Related Clues:

• Sneeze -- say what may catch it?
• Dander reaction, perhaps
• Allergic reaction?
• Allergic reaction of a sort
• 'Gesundheit!' elicitor
• A note to send off that may get one’s blessing?
• Sudden eruption -- and, reportedly, what might stifle it?
• 'Bless you!' elicitor
• In dispute, heard report of expulsion
• Hay fever season sound
• Sound that warrants a blessing
• Outburst often blessed
• Sneezy's outburst
• Sound before 'Bless you'
• Sound before "Bless you"