Hi,
I recently developed lip swellings too (lower lip). I had them before, but they went away by themselves.
Now they just would not disappear and I tried taking Zyrtec. Taking this one time a day lets the swelling disappear completely, so I gathered it is some kind of allergy, am I right?
If I stop taking it, It returns. I have started recently using a mouth wash that contains Sodium Benzoate, but I have not used it yesterday and the swelling still returned.
I will stop using that anyway though. I was due for an allergy test, but I have to stop my anti-histamines three days prior to the test... Which is not really an option at this point.
I am allergic to apples, peers, mango, citrusfruits, kiwi, cucumber peels, various nuts, tree pollen, yellow food dyes, sulfite, some artificial sweeteners and maybe some preservatives I do not know of...
I keep a few hamsters as pets, but have never experienced any allergies towards them. I do kiss my hamsters a lot, but have not done so in the last few days.
Any ideas on what else it might be?