Related Clues:
- 'Bless you!' trigger
- Cold sound?
- Preceder of 'Bless you!'
- Reaction to ragweed
- Sound from a cold sufferer
- Sound prompting a "Gesundheit!"
- 'Gesundheit' elicitor
- Flu season sound
- Sound of a minor explosion
- Sound of a natural explosion
- 'Gesundheit' lead-in
- 'Bless you' prompter
- 'Bless you!' prompter
- Dander reaction, perhaps
- Allergic reaction?