My daughter (10) developed allergies in the last 6 months or so and though we've had her tested, we have no idea what caused THIS. She woke up this morning looking like Eddie Murphy's character in "The Nutty Professor" and was just miserable! A trip to the doctor (after a treatment of Zyrtec at home) confirmed it was a severe allergic reaction (Ya THINK???), but not sure to what. She was put on prescription strength antihistamines and after about 5 hours was back to normal. Poor thing!