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Allegra and Rash: What Users Say

Rash: mentioned by 3 users (3.2%)

Based on user experiences from 95 Allegra reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

drowsiness 13.7%
itching 8.4%
dizziness 4.2%
nausea 4.2%
headaches 3.2%
rash 3.2%
runny nose 3.2%
sore throat 3.2%
weakness 3.2%

Reviews for Allegra

Commonly mentioned side effects
  • CLa...
  • August 29, 2019

For Urticaria "I have chronic idiopathic urticaria, may have an autoimmune component. It started 4 months ago after multiple days of bites by oak mites and maybe a spider or two. I'm on 3 x 180 mg Allegra and 300 mg Zantac in the morning, plus 3 x 10 mg Zyrtec and 300 mg Zantac at night. Plus, miscellaneous Benadryl here and there. Hives went away for a few weeks, and now they are back. Can't afford Xolair. Not sure what's next. This is craziness. Might have to research 'Vitamin D deficiency in chronic idiopathic urticaria.'"

6 / 10
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  • Dan...
  • Taken for less than 1 month
  • March 30, 2016

For Urticaria "I have suffered from cold hives for about 10 years now, and till this day, I have not found a solution. Allegra does nothing for me. I take about two Allegra every time I step out of my house and still get hives all over my face and body. That's more than the recommended dosage for 180 mg. I still have hope that there's a cure somewhere out there."

2 / 10
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18 Report
  • Anonymous
  • Taken for 1 to 6 months
  • July 1, 2024

For Urticaria "I’m 54, have been suffering with chronic hives since I was 9 (1979). I’ve had tests done and biopsies done and nothing. Chemotherapy was supposed to knock it out and did for a while but came back. Benadryl did not help at all. I heard about Allegra and tried it. Within an hour, I felt so much better but had breakthrough hives. I also suffer from anaphylaxis shock. If they get on my lip, I assure you, it’s headed towards my throat. I got one on my lip after I had taken Allegra, but it quickly went away. So very thankful for this medication. I’m also required to carry an EpiPen in case of emergencies."

9 / 10
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