Monday, May 11, 2009

Dermatitis and Eczema – an Article Review

Being a plastic surgeon, I have a great interest in the skin and no I don’t see or treat much dermatitis as the primary physician.  Patients do occasionally ask me about patches / rashes they have.  It’s always nice to be up on the topic and to know when it’s important to make sure they see a dermatologist.

The article listed below is a nice, simple  review of conditions that fall into the eczema / dermatitis categories.  The article discusses atopic dermatitis (AD), nummular (coin-shaped)eczema,  contact dermatitis, and stasis dermatitis.  It is not a deep article on the subject, but did include some nice reminders and tips.

 

The article points out that allergic dermatitis is not uncommon in patients with chronic wounds.  They site an article which documented more than 51% of leg ulcer patients acquire contact allergic dermatitis to local dressings and other topical treatment.  This is important to any of us who treat wounds, acute or chronic.  Sometimes the wound fails to heal due to this.

There is a nice table which lists the common allergens in patients with chronic wounds.  If your chronic wound patient has a contact allergy to these products, it can certainly complicate their wound healing.

  • lanolin (common in moisturizing creams and ointments)
  • perfumes/fragrances
  • cetylsterol alcohol (used as an emulsifier, stabilizer, and preservative in creams, ointments, and paste bandages)
  • preservatives:  quaternium 15, parabens, chlorocresol  (all are used to prevent bacterial contamination in creams, but are not in ointments)
  • rosin (colophony)  -- a component of some adhesive tapes, bandages, or dressings
  • rubber / latex

 

Key to treatment and prevention of future exacerbations is identification of any provocative factors so that they may be avoided as there is no absolute cure for dermatitis.   Here is a summary of tips the article gives:

Laundry and Clothing Suggestions

  • Avoid wearing wool or nylon next to their skin as they may exacerbate itch.  Choose materials made of cotton or corduroy which are softer.
  • Rather than use fabric softeners and bleach, which may be irritating to the skin, add a white vinegar rinse in the washing machine rinse cycle cup/dispenser to remove excess alkaline detergent.

Moisturizers

  • Keep water exposure to a minimum.
  • Use humectants or lubricants regularly to replenish skin moisture.  Apply these agents immediately after bathing while the skin is damp.
  • For severe hand eczema, cotton gloves may be worn at night to augment the moisturizing effect of humectants and other topical treatments.

Topical Steroids

  • Topical steroids continue to be the mainstay therapy for treating dermatitis.
  • Topical steroid creams can be kept in the refrigerator or combined with 0.5% to 1% of menthol (camphor and phenol are alternatives) to give a cooling effect.   This often helps.
  • Treat the dermatitis with a topical steroid when the skin is red and inflamed.  Tapering the topical steroid use by alternating  with moisturizers as the dermatitis resolves.
  • Remember that  percutaneous absorption of topical steroids is greatest on the face and in body folds.  They suggest only weak or moderate preparations be used in these areas.
  • Moderate to potent topical steroids should be used on the trunk and the extremities.
  • The palms and soles are low-absorption areas, so may require very potent topical steroids

 

 

 

REFERENCE

The ABCs of Skin Care for Wound Care Clinicians: Dermatitis and Eczema; Advances in Skin & Wound Care: May 2009, Vol 22, Issue 5, pp 230-236;  Woo, Kevin Y. RN, MSc, PhD, ACNP, GNC(C), FAPWCA; Sibbald, R. Gary BSc, MD, MEd, FRCPC (Med, Derm), ABIM DABD, FAPWCA (doi:10.1097/01.ASW.0000350837.17691.7f)

 

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2 comments:

Jabulani said...

Eczema and dermatitis are becoming big issues amongst the children I know, and parents fret over the correct treatments thereof. However, on a lighter note, I am reminded of a few years ago when children and rashes were a MAJOR topic of conversation for us new moms. For some odd reason, I was viewed as the Encyclopaedia-of-Rash-Knowledge. One day, we were gathered together talking when a mother suddenly noticed marks on her child's leg.
"What do you think it could be?" Various answers: scarlet fever, chicken pox, reaction to washing powder, stinging nettles...
When all eyes turned to me, I piped up,
"It could of course just be that it's a hot day and he's been sat on that scratchy carpet playing for ages."
Sure enough, after the kid had run around for a while, the marks faded!

ThePreemie Experiment said...

I did a post on this last year-after finding a spot on Paige's arm. Paige has battled with eczema since she was a baby but this spot was different. It was interesting to see the difference of opinion in the comments.

http://thepreemieexperiment.blogspot.com/2008/05/excema-or-ring-worm.html

On a side note... even though my blog is devoted to discussing the long term issues related to prematurity, the eczema post still gets the most hits. It's been a year since I did that post and I still get at least 1 email each month asking about that topic.