These itchy welts can show up anywhere on your skin. They’re caused by an allergic or other type of reaction. Your doctor may call them urticaria. They can last a few minutes or several days before they go away. Sometimes they’re a sign of more serious problems, especially when you have trouble breathing.
Chronic sinus or allergy problems can leave you feeling as though your nose is perpetually stuffed. To breathe freely again, many sinus sufferers rely on nasal irrigation, a technique that flushes out clogged nasal passages using a saltwater solution.
"I find it to be the first line of defense in dealing with complicated sinus problems and allergy problems," says Evangeline Lausier, MD, assistant clinical professor of medicine and director of clinical services at Duke University's department of...
Another reaction that sometimes happens along with hives is called angioedema. It’s swelling that develops under the skin. It often affects the eyes and lips, and sometimes the genitals, hands, and feet.
It’s rare, but the swelling from angioedema can happen in your throat and cause trouble breathing. If that happens, use an auto-injector and call 911.
What Causes Hives?
They pop up when skin cells release a substance called histamine. It’s the start of the process we call an allergic reaction. Common triggers for hives include: