Poison Oak, Ivy, Sumac dermatitis
Revision as of 00:17, 21 February 2015 by Rossdonaldson1 (talk | contribs)
Background
- 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 |
|
Diagnosis
- Previous exposure leads to sensitization and earlier symptoms
- 1-2 days for previous sensitizations and 10-14 days for first contact
Workup
- Clinical diagnosis
Differential Diagnosis
Treatment
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