What are the causes of allergic contact dermatitis?

What is the most common cause of allergic contact dermatitis?

Nickel. Nickel is the most frequent cause of allergic contact dermatitis. Between 8% and 11% of women have this allergy.

What causes contact dermatitis to flare up?

External triggers, like allergens and irritants, may make contact with your skin and start a flare-up. Internal triggers, like food allergies and stress, may cause an increase in inflammation in the body that leads to a bad rash.

What foods cause contact dermatitis?

Garlic and onions are two of the most well-known sources of allergic contact dermatitis from food; herbs and spices have been reported to cause contact dermatitis,[3,10] and an unusual case of ACD caused by water rich in nickel has also been reported.

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.

How is allergic dermatitis treated?

To help reduce itching and soothe inflamed skin, try these self-care approaches:

  1. Avoid the irritant or allergen. …
  2. Apply an anti-itch cream or lotion to the affected area. …
  3. Take an oral anti-itch drug. …
  4. Apply cool, wet compresses. …
  5. Avoid scratching. …
  6. Soak in a comfortably cool bath. …
  7. Protect your hands.
THIS IS AMAZING:  What will clear up baby acne?

Can allergic dermatitis spread?

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.

What is the main cause of dermatitis?

A common cause of dermatitis is contact with something that irritates your skin or triggers an allergic reaction — for example, poison ivy, perfume, lotion and jewelry containing nickel.

What to drink to stop itching?

Water is great for your health in many ways, including itch relief. Drinking more water keeps your skin hydrated from the inside out and flushes out toxins that can cause irritation. Remember, caffeine and alcohol are dehydrating and can worsen itching.

Does contact dermatitis go away?

Most cases of contact dermatitis go away on their own once the substance is no longer in contact with the skin. Here are some tips you can try at home: Avoid scratching your irritated skin. Scratching can make the irritation worse or even cause a skin infection that requires antibiotics.

What does dermatitis look like?

Periorificial dermatitis: Periorificial dermatitis looks like acne or rosacea. It develops around your mouth, eyes and nose. Seborrheic dermatitis (dandruff). Seborrheic dermatitis (called dandruff when it’s on your head) appears as red, dry, flaky, itchy skin on your scalp and other parts of your body.