Related Clues:

• Head parasites
• Some ectoparasites
• Cause of some head scratching?
• Bloodsucking parasitic insect
• Leaping parasites
• To get so lousy might make Ma feel bad.
• Little nippers for the spring
• How the sprite comes back, as they're on the hop
• The Po could make what's lousy come in force
• How lousy to be frozen after half a century!
• Children's head pests
• They dog dogs
• Bothersome parasites
• They cause head-scratching?
• Hair grossness