was tun bei einer allergischen reaktion — when to see a doctor?

For an allergic reaction, management depends on severity. Mild symptoms like local itching, sneezing, or slight rash can often be managed with oral antihistamines (e.g., cetirizine). However, you should see a doctor immediately if you experience: difficulty breathing, swelling of lips/tongue/throat, trouble swallowing, sudden nausea/vomiting, dizziness, or loss of consciousness – these are signs of anaphylaxis, a medical emergency. Also seek medical advice for first-time reactions, in children, during pregnancy, or if you are taking other medications. The provided context (DNA tests for longevity, sport, taste) is not relevant to acute allergy care. MyBody-X does not offer allergy diagnostics or emergency guidance. The evidence for these recommendations is based on clinical practice and guidelines (e.g., from the American Academy of Allergy, Asthma & Immunology). Caveat: Suspected anaphylaxis requires immediate emergency call (911) and, if available, use of an epinephrine auto-injector.