It can happen with merchandise corresponding to shaving lotion, sunscreen and a few perfumes. Eczema, also called atopic dermatitis, impacts  between 10 and 20 % of children and 1 to three percent of adults. A widespread symptom of eczema is dry, purple, irritated and itchy skin.
Host components embody heredity, sex, race, and age, with heredity being by far probably the most significant. However, there have been recent increases in the incidence of allergic problems that cannot be explained by genetic elements alone. Four major environmental candidates are alterations in publicity to infectious ailments throughout early childhood, environmental pollution, allergen ranges, and dietary modifications. Certain diets are formulated to scale back the itch caused by atopic dermatitis.
“The creams that you purchase can produce problems that make your unique downside even worse,” Katz says. Because rashes can be brought on by many alternative things—bacteria, viruses, medication, allergies, genetic issues, and even light—it’s essential to determine what sort of dermatitis you have. “The most typical form of dermatitis that's seen wherever is an allergic contact dermatitis to nickel,” says Katz. Because of ear piercing.” Many  inexpensive earrings are made of nickel, and over time, sporting nickel earrings can cause an allergic response to the metallic. The symptoms of these various sorts of rashes often overlap. “Itching is a standard symptom for all these problems,” 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 pores and skin reactions, bronchoconstriction, swelling, low blood strain, coma, and death. This kind of reaction can be triggered abruptly, or the onset may be delayed. The nature of anaphylaxis is such that the response can seem to be subsiding but may recur throughout a time period. Red, bumpy, itchy pores and skin may be irritating, painful and embarrassing.
More serious symptoms like a drop in blood strain and hassle respiratory could 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 listing of symptoms of a meals allergy reaction is out there here.