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Oct
Drug Reaction Hives Pictures. Morbilliform drug eruption is the most common form of drug eruption. In rare cases allergic reactions that trigger hives set off a chain reaction throughout the body resulting in a life-threatening condition called anaphylaxis. Hives can be very small such as the size of the tip of a pen to very large such as the size of a dinner plate. A morbilliform skin rash in an adult is usually due to a drug.
You may also be at risk to develop hives. The most common type of drug reaction is hives also known as urticaria. 26 Pictures of Hives Urticaria On Skin. A drug rash sometimes called a drug eruption is a reaction your skin can have to certain drugs. It may appear right away or a few weeks after you first take the medicine. Drug or medication allergies happen when the bodys immune system overreacts to a medication.
In most cases hives are caused by an allergic reaction to a medication or food or a reaction to an irritant in the environment.
Hives happen because your body recognizes somethinga food or medication for instanceas foreign and reacts by fending off the foreign invader. Being able to recognize what hives look like will help you move forward with diagnosis and preventing future breakouts for you or a loved one. The type of rash that happens depends on the medicine causing it and your response. Urticaria is another name for hives which can show up anywhere on the body. These are hives that last less than 6 weeks. Hives also known as urticaria are reddened itchy welts that may be triggered by exposure to certain foods medications or other substances.