what is anaphylactic shock

Anaphylactic shock is a severe, life-threatening allergic reaction that can develop rapidly. It occurs when the immune system releases a flood of chemicals that can cause a sudden drop in blood pressure and narrowing of the airways, which can block breathing. Common triggers include certain foods, medications, insect venom, and latex. Symptoms of anaphylactic shock can include a skin rash, swelling of the mouth, throat, or tongue, difficulty breathing, wheezing, abdominal pain, nausea, vomiting, and unconsciousness. Anaphylaxis should always be treated as a medical emergency, and an injection of a medicine called adrenaline should be given as soon as possible. Other treatments may include oxygen, IV antihistamines and cortisone, and a beta-agonist to relieve breathing symptoms. The best way to prevent anaphylaxis is to stay away from substances that cause this severe reaction. If you are at risk of anaphylaxis, it is important to carry epinephrine autoinjectors and to talk to your healthcare provider about how to use them. If you think you are having an anaphylactic reaction, use your epinephrine autoinjector and call 911 immediately so you can be transported to the nearest emergency room.