Wow. Has she seen a board certified pediatric allergist who specializes in food allergies? Could she be allergic to more than just lemons, given that she's frequently pale and blotchy and feeling ill?
I'm so sorry to hear you are going through this. We have some really super-smart people here (I'm not one of them
) so hopefully someone will be able to point you in the right direction.
Are you in the U.S or another country? If you are in the U.S. or Canada, can you give us a general location (like Northeast, etc.)? We may be able to recommend some top notch pediatric allergists to you.