It is possible that the main title of the report Anaphylaxis is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
See a doctor if your outbreak doesn't disappear in a few days, though. And get medical help right away if you notice symptoms of angioedema (such as swelling of the lips, tongue, or throat) or a severe allergic reaction (anaphylaxis).
If you often get hives, or if your outbreaks affect you a lot, your doctor will probably prescribe antihistamines. Treatment with corticosteroids, which you take by mouth, will sometimes reduce swelling when antihistamines don't work. But doctors usually save them for more severe cases. Your doctor may also consider a biologic drug, omalizumab (Xolair), for chronic hives in people age 12 and over.
Tell your doctor if you keep getting bouts of hives that last a month or more.
Call 911 or get emergency medical help immediately if any of these things happen:
1. You start to get burning or itchy welts in your throat.
2. You get hives and a dry throat, cough, cold sweats, nausea, dizziness, trouble breathing, or a sharp drop in blood pressure after a bee sting or insect bite or a new medication. This may be anaphylaxis. Give yourself an epinephrine shot, even if you're unsure whether your symptoms are allergy related. It’s safe to use. You'll still need medical attention even if your symptoms seem to stop.
3. You have symptoms of angioedema (again, that's swelling of the lips, tongue, or throat). You need immediate medical attention so that it doesn’t block the air passage to the lungs.