According to the American Academy of Dermatology, hives in adults can be caused by many factors that include allergic reactions to shellfish, nuts and insect stings. Hives can also be brought on by stress and exposure to the sun and some chemicals.Continue Reading
Mayo Clinic explains that allergens, such as pet dander and pollens, and products containing latex can also cause hives in certain individuals. Underlying medical conditions that may trigger hives include hepatitis, thyroid disorders and immune system disorders. Individuals who undergo blood transfusions may develop hives in response to the procedure. Medications such as ibuprofen, aspirin, blood pressure drugs and naproxen may cause allergic hives in sensitive individuals. Mayo Clinic adds that risk factors for developing the condition include past allergic reactions and a family history of medical conditions in which hives are a factor.
WebMD reports that in certain cases, hives can appear with no underlying cause. Hives are also referred to as uticaria and present as itchy red swellings on the skin that range in size from small to large. Uticaria can develop anywhere on the body, including the tongue. In addition to itching, hives can sting or burn.
Hives that develop beneath the skin are referred to as angiodema, a condition that can cause severe swelling of the lips, hands, genitals and feet. Angiodema swelling typically dissipates within 24 hours, according to Mayo Clinic.Learn more about Skin Conditions
Doctors diagnose a hives outbreak chiefly by evaluating the patient’s history, performing routine blood tests and, if necessary, performing a skin test to determine the patient’s allergic reactions, WebMD explains. There is no specific test for hives.Full Answer >
Peanuts, tree nuts, milk, eggs, wheat, soy, fish and shellfish are the foods that cause the most allergic reactions, explains Food Allergy Research and Education. Only around 5 percent of children and 4 percent of adults are truly allergic to certain foods, although many more suffer dietary intolerance, states WebMD.Full Answer >
Shingles, hives, psoriasis, eczema and rosacea are some common skin conditions in adults, according to WebMD. Other sources of skin conditions include cold sores, rashes from plants and razor bumps.Full Answer >
Common skin problems adults have include athlete’s foot, psoriasis, eczema, rosacea and hives. Additional skin issues include acne, shingles, cold sores, skin tags and razor bumps. Physicians are capable of diagnosing skin disorders by looking at the skin for abnormalities, notes the Merck Manual. As of 2015, there is a large selection of examinations to diagnose skin conditions, reports WebMD. Typical skin tests include a patch test, a culture test and a skin biopsy.Full Answer >