Related Clues:

• Reacts to dust, say
• They often bring blessings
• Elicits a "God bless you"
• Dismisses as insignificant, with 'at'
• Dismisses as insignificant, with "at"
• Breathes in too much pepper
• Everyday explosions
• Achoos
• Reacts to pollen, maybe
• Allergic outbursts