The information reflected here is dependent upon the correct functioning of our algorithm. From time-to-time, our system might experience bugs or glitches that affect the accuracy or correct application of mathematical algorithms. Hello all! I have been experiencing severe facial swelling with deep sores and hives. I went to my doctor to see if i could get him to give me beta blockers along with an antihistimine. About this FactMed analysis covering adverse side effect reports of ALLEGRA patients who developed ROSACEA. FactMed provides MD-approved analysis to help both patients, researchers, and physicians accurately assess the risk profile for more than 20,000 different pharmaceutical products. Get answers to some of the most common rosacea questions from this panel full of noted dermatologists and cosmetic surgeons. Learn more at Everyday Health. Otherwise it can be rosacea, or acne rosacea, which is a skin disorder. It causes redness and pimples on the face around nose, forehead, cheekbones, and chin. The pimples of rosacea look a lot like acne but do not have blackheads. The main reason they increase is because of increased blood flow as in blushing. Summary. Rosacea is found among people who take Allegra, especially for people who are female, 50-59 old , have been taking the drug for 1 - 2 years, also take medication Ambien, and have Arthritis. My doctor gave me doxyclycline hyclate 100 mg cap one-twice daily for rosacea and he said I had cellulites. He also gave me Flonase (which I am already taking) He told me he can give me something stronger-a steroid for my sinuses if needed. Persons who sufferer of Rosacea and other skin conditions and something that has been used as a non-irritants in softer less wrinkles fine lines and botanical acne is most likely to serve as adolescent acne. For the longest time, I thought I had acne but recently was diagnosed with rosacea by Dr. Tseng. I've had a vascular laser treatment done which is considered cosmetic but it did help with the redness. Hi Betty, I am currently taking allegra and chlortrimetron. Not sure why but my derm recommended them. I don't usually do things without knowing why but I feel so beat up by this disease that I am willing to try whatever he recommends (within reason LOL).