Lip Blister Allergy What Causes The Development Of Oral Allergy Syndrome?

What causes the development of Oral Allergy Syndrome? - lip blister allergy

All food producing acids, such as burning mouth. Tomatoes, onions, citrus fruits, potato chips, cookies, etc. I can develop large bubbles of water in the mouth and the skin from my lips. Can anyone explain why this happens? I had to switch to a diet very sweet and very boring to eat!