Hives (red, itchy skin patches) with breathing problems may indicate anaphylaxis, a life-threatening allergic reaction.
Warning signs include wheezing, throat tightness, swelling, dizziness, or rapid heartbeat. Common triggers are foods, medications, insect stings, and latex.
This is a medical emergency—call for help immediately and use an epinephrine injector if available.
Even if rashes seem mild, breathing difficulty means urgent treatment is needed.