Actually i dont really think that allergy is the root cause for me.
Well each of our case is different, but i think if allergy to certain food is the cause, then the symptom will not just happen at the lips.
For example, when my friend ate prawns (which he is allergic to), his WHOLE body will itch.
I also dont believe in using any drugs like Benadryl. There must be some minor problem internally somewhere. If we heal it, our lips will heal also. Also, stress is a great cause of EC too.
I think that the organ spleen maybe our root cause.
Spleen is responsible for making red blood cells. If it doesnt get enough chlorophyl, it will sound out to us and the symptom will be EC.