Poison Oak, Ivy, Sumac dermatitis
Revision as of 08:41, 10 July 2016 by Neil.m.young (talk | contribs) (Text replacement - "==Treatment==" to "==Management==")
Background
- Type of contact dermatitis
- Caused by Urashiols found in the sap of the plant.
Plant | Distribution | Charateristics |
Ivy | East of the Rockies |
|
Oak | West of the Rockies |
|
Sumac | Southeast swamps |
|
Clinical Features
- Previous exposure leads to sensitization and earlier symptoms
- 1-2 days for previous sensitizations and 10-14 days for first contact
Differential Diagnosis
Other Rash
- Acute generalized exanthematous pustulosis
- Allergic reaction
- Aphthous stomatitis
- Atopic dermatitis
- Coxsackie
- Dermatitis herpetiformis
- Exfoliative erythroderma
- Impetigo
- Pellagra
- Pityriasis rosea
- Serum Sickness
- Tinea capitus
- Tinea corporis
- Vitiligo
Diagnosis
- Clinical diagnosis
Management
Prexposure Prophylaxis
- Ivy Shield, Stokogard, Organoclay, IvyBlock
Postexposure Prophylaxis
- Technu Poison Cleanser- may solubilize bound resin several hours post exposure
- Dr Wests Ivy Detox Cleanser chelates urushiol- decreases itching even if have rash
Symptomatic Treatment
- if small can use topical Temovate 0.05%
- topical anesthetic- menthol or pramoxine
- single IM dose of Triamcinolone or Prednisone taper over 15-20 days
- 60mg x 4d then 50mg x 4d then 40 30 20....Use oral steroid for 3wks until skin turns over
- systemic antihistamines
- cooling soothing baths
- Pentoxifylline- blocks formation of TNF alpha- suppresses allergic patch testing
- Put sunscreen first, then prexposure ivy cream, then mosquito repellant
See Also
Video
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