Immediately after eating lasagna the other night, i noticed a stinging around my lips. in no less than a couple of minutes, bumps began to form. i woke up with a terrible sore throat. before that, i hadn't known if any food allergies. my throat still feel

Now you do: This is a sign of food allergy, now it could be the lasagna or any other ingredient in the lasagna, . What kind of sauce you have, were there any nuts in the food or not, did you eat anything else that time like salad, or appetizer,what kind of meat they used . You have to eliminate the possibility of every ingredient you ate that day as possible cause for the allergy. See your doctor. Please.