Contact Dermatitis

Contact Dermatitis may be due to an irritant or an allergen.

  1. Irritant Contact Dermatitis

Irritant contact dermatitis accounts for 80% of all contact dermatitis reactions.


It occurs when the skin comes in contact with a substance that acts as irritant. Almost any substance under the right circumstances can act as an irritant

Acute Irritant Contact Dermatitis


Strong toxic chemical such as an acid or alkali.

The rash occurs within minutes to hours after exposure and in most cases healing occurs soon after exposure.


  1. Sharp bordered rash
  2. Redness
  3. Vesicles
  4. Bullae
  5. Skin sloughing.

Chronic Cumulative Irritant Contact Dermatitis


Repeated exposure to low-level irritants, such as soaps or shampoos.

The rash may take weeks, months, or even years to develop.


  1. Poorly-defined bordered rash
  2. Itching
  3. Redness
  4. Scaling
  5. Fissuring
  6. Lichenification

 Examples of irritants:

  • Dribble rash around the mouth or on the chin in a baby, or in older children due to licking; the cause is saliva, which is alkaline.
  • Napkin dermatitis due to urine and faeces.
  • Chemical burns from strong acids (eg. hydrochloric acid) and particularly alkalis (eg. sodium or calcium hydroxide).
  • Hand dermatitis caused by excessive exposure to water, soaps, detergents, bleaches and polishes.
  • Dermatitis on a finger underneath a ring. Soaps, shampoos , detergents and hand creams accumulate under the ring
  • Rubber gloves or the powder or sweat or tiny quantities of chemicals  inside them
  • Rubber may  result in latex or rubber antioxidant allergy.
  • Fibre glass may cause direct mechanical/frictional damage.
  • Dry cold air may cause dry irritable skin (winter itch)
  • Cosmetics(mainly gels and solutions) may irritate sensitive facial skin.


Avoiding the irritant should allow the rash to clear in two to four weeks. Creams or medication can help reduce itching.


Allergic contact dermatitis is inflammation of the skin manifested by varying degrees of erythema, edema, and vesiculation.

It is a delayed type of induced sensitivity (allergy) resulting from cutaneous contact with a specific allergen to which the patient has developed a specific sensitivity .


  1. Metals( nickel or cobalt) in jewellery
  2. Cosmetics(fragrances, hair dye and nail varnish)
  3. Preservatives
  4. Rubber, including latex
  5. Textiles, particularly the dyes and resins that are contained in them
  6. Strong adhesives ( epoxy resin adhesives)
  7. Some plants(chrysanthemums, daffodils, tulips and primula)
  8. Some topical medicines


  1. Avoid the cause
  2. Emollients
  3. Topical corticosteroids
  4. Oral corticosteroids
  5. Antibiotics

12 thoughts on “Contact Dermatitis”

  1. There’s something wrong with your site. You don’t have enough backlinks. Links from other sites will get you more organic traffic for free.

  2. If you want to grow your familiarity just keep visiting this web
    site and be updated with the hottest gossip posted here.

  3. Fine way of explaining, and pleasant post to get facts on the topic of my presentation subject,
    which i am going to convey in college.

  4. Hi,

    Whether you know it or not, the greatest social signals in the world are comments.

    Yes, relevant comments are a proven way to boost your Traffic and Engagement.

  5. Very nice post. I just stumbled upon your weblog and wished to say that I’ve really enjoyed browsing your blog posts.
    After all I’ll be subscribing to your rss feed
    and I hope you write again soon!

  6. Oh my goodness! a great write-up dude. Thank you However We are experiencing problem with ur rss . Do not know why Unable to join it. Could there be any person obtaining identical rss problem? Anybody who knows kindly respond. Thnkx

  7. Want to get more customers for your online business? We can get you keyword targeted people specifically for your specific type of business

  8. Want more visitors for your website? Get tons of people who are ready to buy sent directly to your website. Boost revenues quick. Start seeing results in as little as 48 hours.

  9. Good evening, I was just checking out your website and filled out your contact form. The “contact us” page on your site sends you these messages via email which is why you are reading through my message at this moment correct? That’s the most important accomplishment with any type of advertising, making people actually READ your advertisement and this is exactly what you’re doing now! If you have something you would like to promote to tons of websites via their contact forms in the U.S. or anywhere in the world send me a quick note now, I can even target particular niches and my charges are very affordable.

Leave a Comment