![]() Hives can also appear but this does not happen as frequently as it does in allergic reactions. Toxic reactions present with a mixture of fever, nausea, vomiting, diarrhea, headache, fainting, and convulsions. In these cases, the sheer quantity of venom will start producing an immune response. The exception to this is if you are on the receiving end of multiple yellow jacket stings within a short period. Wasp venom does not normally cause serious problems unless you have an allergy. An allergic reaction can become fatal within minutes, so if you see signs of hives or breathing problems, seek emergency help immediately and administer an EpiPen as soon as possible. Not only is there a very real risk of suffocating, but the stress and breathing difficulty can cause cardiorespiratory arrest, a type of heart attack triggered to breathing problems. The most severe consequence of an allergic reaction is that the swelling blocks the airway and triggers a state of anaphylaxis. The severity of an allergic reaction can vary and they are most serious in people 20 years old or younger. A sting allergy takes the form of raised, red bumps on the skin (hives) the swelling of the epiglottis (flap of cartilage at the base of the tongue), and the narrowing of the bronchial passages. In those who do have an allergy, the sting of a yellow jacket can trigger a set of systemic (whole-body) reactions. Most people are not allergic to wasp stings. If localized effects are all you’re seeing after a yellow jacket sting, first aid is often enough. While distressing, none of these symptoms cause serious harm or danger. ![]() In some cases, the patient may feel nauseated or fatigued for several days afterward, but shouldn’t vomit. ![]() The sting site may be itchy and, of course, yellow jacket stings hurt as well. Yellow jacket stings cause swelling, warmth, and inflammation (redness) and can last for several hours before subsiding. These are the symptoms that happen at the site of the sting itself due to a combination of the skin puncture and venom injection. Before getting into what to do when a yellow jacket stings someone, it’s important to understand what the actual effects are that a sting can have on the body. Wasps are very protective and will usually try to sting anyone who gets within a few feet of their hive. ![]()
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