Contact dermatitis is caused by a substance you’re exposed to that irritates your skin or triggers an allergic reaction. The substance could be one of thousands of known allergens and irritants. Some of these substances may cause both irritant contact dermatitis and allergic contact dermatitis.
Can seasonal allergies cause contact dermatitis?
Contact dermatitis and seasonal allergies
The most common trigger for allergies is pollen. While contact dermatitis is usually from substances that come in direct contact with the skin, airborne allergens like pollen may trigger dermatitis, too.
What allergies can cause dermatitis?
Allergic contact dermatitis: Your body has an allergic reaction to a substance (allergen) that it doesn’t like. Common allergens include jewelry metals (like nickel), cosmetic products, fragrances and preservatives. It can take several days after exposure for an itchy, red rash to develop.
What is the difference between contact dermatitis and allergic dermatitis?
Atopic dermatitis is a chronic skin condition characterized by inflammation of the skin (dermatitis). Most cases of atopic dermatitis are thought to occur due to a combination of genetic and environmental factors. Contact dermatitis develops when the skin comes in contact with something that triggers a reaction.
How long can allergic contact dermatitis last?
Contact dermatitis usually occurs on areas of your body that have been directly exposed to the reaction-causing substance — for example, along a calf that brushed against poison ivy or under a watchband. The rash usually develops within minutes to hours of exposure and can last two to four weeks.
Can pollen allergies cause skin rash?
Often, allergens like pollen can come in contact with the skin and cause a rash. You might notice itchy red patches on the skin when this happens. These patches are often raised or swollen with clearly-defined edges.
Where on the body does irritant contact dermatitis most frequently start?
The hands and feet are commonly affected but ICD can occur on the face or elsewhere on the body. If the chemical is in contact with a large area of skin the rash may be extensive. Contact with strong chemicals such as some acids or alkalis, may cause a rash or chemical burn to appear quickly.
Is allergic contact dermatitis an immediate reaction?
Contact allergies can lead to severe skin reactions. Unlike with many other kinds of allergies, the reaction doesn’t occur immediately, but usually after one to three days.
Is dermatitis caused by stress?
Anxiety and stress are common triggers that cause eczema to flare up, which then creates more anxiety and stress, which then leads to more eczema flare-ups.
What does bad dermatitis look like?
You might notice itchy patches on the hands, elbows, and in the “bending” areas of the body, such as the inside of the elbows and back of the knees. But eczema can appear anywhere, including the neck, chest, and eyelids. People who had atopic dermatitis as a child may see drier, scaly rashes as adults.
Does Zyrtec help contact dermatitis?
Over-the-counter oral antihistamines like Benadryl, Zyrtec, or store-brand allergy medication might help with allergic dermatitis. If you’re frequently experiencing contact dermatitis due to minor allergies, you can take a prescription allergy medication to prevent future outbreaks.
Why is my contact dermatitis spreading?
Allergic contact dermatitis frequently appears to spread over time. In fact, this represents delayed reactions to the allergens. Several factors may produce the false impression that the dermatitis is spreading or is contagious. Heavily contaminated areas may break out first, followed by areas of lesser exposure.
Can dermatitis spread by scratching?
Scratching the itchy rash associated with dermatitis can cause open sores, which may become infected. These skin infections can spread and may very rarely become life-threatening.
Does contact dermatitis ever go away?
Contact dermatitis symptoms usually go away in two to three weeks. If you continue to contact the allergen or irritant, your symptoms will most likely return. As long as you avoid contact with the allergen or irritant, you will probably have no symptoms.
Does contact dermatitis get worse before better?
“It typically can worsen over time. The initial rash may be relatively mild,” he says. “And each subsequent time you’re exposed, it can actually get worse and worse until it reaches a maximum severity.”