I get body rashes and my lips get swollen because of some allergy. I got some tests done to check if I am allergic to things such as milk, weed, glutton, etc. But everything was positive. The frequency of lip swelling has increased to once-twice a month despite taking one allegra 180 mg every day (i have taking allegra for last couple of years), as prescribed by the doctor. Please tell me what should I do. I am 28 male.