It can occur with products corresponding to shaving lotion, sunscreen and a few perfumes. Eczema, also called atopic dermatitis, affects  between 10 and 20 % of youngsters and 1 to 3 % of adults. A frequent symptom of eczema is dry, purple, irritated and itchy skin.
Host components embody heredity, intercourse, race, and age, with heredity being by far essentially the most important. However, there have been current increases within the incidence of allergic problems that can't be explained by genetic factors alone. Four main environmental candidates are alterations in publicity to infectious illnesses during early childhood, environmental air pollution, allergen levels, and dietary adjustments. Certain diets are formulated to reduce the itch caused by atopic dermatitis.
“The lotions that you buy can produce issues that make your unique problem even worse,” Katz says. Because rashes may be attributable to many various things—bacteria, viruses, drugs, allergy symptoms, genetic problems, and even light—it’s important to determine what kind of dermatitis you've. “The commonest form of dermatitis that is seen anyplace is an allergic contact dermatitis to nickel,” says Katz. Because of ear piercing.” Many  inexpensive earrings are manufactured from nickel, and over time, carrying nickel earrings could cause an allergic response to the metal. The symptoms of these different types of rashes typically overlap. “Itching is a common symptom for all these issues,” says Dr. Stephen I. Katz, director of NIH’s National Institute of Arthritis and Musculoskeletal and Skin Diseases.
Depending on the severity, anaphylaxis can include skin reactions, bronchoconstriction, swelling, low blood strain, coma, and demise. This type of reaction can be triggered suddenly, or the onset may be delayed. The nature of anaphylaxis is such that the reaction can seem to be subsiding however could recur all through a time frame. Red, bumpy, itchy skin could be irritating, painful and embarrassing.
More serious symptoms like a drop in blood pressure and bother respiration can be life-threatening. Talk to your allergist and work with them to fill out a Food Allergy & Anaphylaxis Emergency Care Plan to be prepared in an emergency. A full list of signs of a food allergy reaction is out there here.