Possible Clues:

• Need a tissue
• It's back to the sprite on the fish when it's cold
• Sign of a cold?
• Reason to grab a tissue
• Cold sign
• Sound from a cold sufferer
• A little cold, which may help pixie to swim backwards?
• Allergy symptom
• Symptom that a cold may be coming on
• Small female with delicate retro clothing's a little cold