Here is a list I collected and found about their weaknesses.
Silver is poisonous to the minor werefolk. Giving them heat rash and great pain. Master Werefolk are only annoyed by the feeling of such a weapon. Must be expensive and masterfully crafted silver. Silver coatings will only hurt.
Your scent will expose you to animals making them from scared to extremeely hostile towards you. Even a pet dog you loved would need time to accept this new you. Were Cats however are loved by all cats, lucky buggers. Sometimes the animal your Wereform is will accept you. Use Strong Perfume or Cologne to avoid this problem.
Wolfbane is a plant that makes only werefolk have sneeze frenzies. Only the flowers do so. Common weapon of hunters.
Full moon makes you go into a blood frenzy unless you resist transformation. Extreme stress will also force a transformations possibly.
Senses: Your senses are enhanced so if you smell a to powerful scent like skunk spray, your blinded for a short period of time. Loud enough sounds will also deafen you for the same amount of time.
