Doctors warn that sudden hives, rashes, or itchy red bumps may be more than a simple skin irritation. While many reactions are harmless, symptoms like trouble breathing, throat tightness, dizziness, or swelling of the lips and face could signal anaphylaxis, a life-threatening allergic emergency.
Anaphylaxis can be triggered by foods, medications, or insect stings, even if previous exposure caused no problems. Because the reaction can escalate within minutes, experts urge people to seek immediate medical attention when severe symptoms appear alongside skin reactions.
