Chemicals that trigger the development of skin rashes or dermatitis occur in various mechanisms. When it comes to allergic contact dermatitis, it develops once the body reacts after exposure to any substance or object in which it has developed an allergic sensitivity to. Irritant contact dermatitis develops once the skin is exposed to an irritant. It simply means that the substance strips away the protective oils and damages the skin. There are various chemicals that are known to trigger one or both of these reactions.
Rubber
Throughout the years, natural latex is a common allergen for many highly sensitive individuals. Most of the chemicals utilized in manufacturing rubber also trigger allergic contact dermatitis. The rubber accelerators are the chemicals used to speed up the manufacturing process. These are commonly linked with rubber contact allergies.
Take note that allergic contact dermatitis can occur due to exposure to various products containing rubber such as balloons, condoms or garden hoses. It is important to note that latex allergies have been a special issue for healthcare professionals who depend on gloves to maintain sanitary conditions in the workplace. These healthcare workers should inquire if a particular patient has any sensitivity to latex before handling.
Cosmetics
Various cosmetics such as sunscreen, aftershave, shampoos and makeup often contain fragrances that are known to trigger allergic contact dermatitis. Even the unscented varieties can also cause contact dermatitis since they often contain perfumes that are simply disguised. The products that are labelled as “fragrance-free” are more likely to be safe for those who have allergic reactions to fragrances.
Some cosmetics are also known to trigger a rash by irritating the skin instead of causing an allergic reaction. Individuals who have highly sensitive skin can also suffer from irritant contact dermatitis as a response to exposure to certain cosmetic gels and solutions.
Detergents and soaps
Always bear in mind that irritant contact dermatitis can develop after constant exposure to a mild irritant such as detergent or soap. Prolonged hand washing can also trigger irritant contact dermatitis by stripping away the oil in the skin which causes dryness and eventually flake, peel or crack. This leaves the skin vulnerable as the irritants penetrate the uppermost skin layer via the cracks and trigger irritation in the deeper epidermal layers.
Detergents and soap that contain fragrances can additionally trigger allergic contact dermatitis among those who are sensitive to the fragrance. This is why it is important that the individual checks the products he/she uses.
Alkaline or acidic substances
Strong chemicals such as hydrochloric acid or alkaline chemicals such as sodium hydroxide can impair the surface of the skin and result to an irritant contact dermatitis. Remember that saliva is alkaline and drool can trigger irritant dermatitis among infants.