It can happen with products such as shaving lotion, sunscreen and some perfumes. Eczema, also called atopic dermatitis, impacts  between 10 and 20 p.c of youngsters and 1 to 3 p.c of adults. A frequent symptom of eczema is dry, purple, irritated and itchy pores and skin.
Host components embody heredity, sex, race, and age, with heredity being by far essentially the most important. However, there have been recent increases in the incidence of allergic problems that cannot be explained by genetic factors alone. Four main environmental candidates are alterations in exposure to infectious ailments throughout early childhood, environmental pollution, allergen ranges, and dietary adjustments. Certain diets are formulated to reduce the itch brought on by atopic dermatitis.
The greatest approach to prevent contact dermatitis is to keep away from contact with the allergens or irritants that trigger your symptoms. If you possibly can successfully keep away from the irritants or allergens that trigger your signs, your skin will eventually clear up. See a GP  when you have persistent, recurrent or extreme symptoms of contact dermatitis.
While bug bites usually cause rashes, even just touching some insects may cause rashes. For example, the white-marked tussock moth caterpillar is a common caterpillar seen in Tennessee in the summertime months. Curious kids typically contact its brightly coloured body. Many folks develop a rash after touching the caterpillar or its cocoon hairs. One of the most typical rashes from a parasite an infection is scabies.
A contact allergy is the least frequent sort of allergy in dogs. It results from direct contact with allergens, such as pyrethrins, present in flea collars, pesticides, grasses, and supplies, similar to wool or synthetics, utilized in carpets or bedding. Contact allergic reactions can develop into virtually something and at any age.