Poison Oak, Ivy, Sumac dermatitis: Difference between revisions
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==Background== | ==Background== | ||
[[File: | [[File:Poison Ivy in Perrot State Park.jpg|thumb|Poison Ivy]] | ||
*Caused by Urashiols found in the sap of the plant. | *Caused by Urashiols found in the sap of the plant. | ||
{| class="wikitable" | {| class="wikitable" | ||
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*2 opposing leaflets single terminal leaf | *2 opposing leaflets single terminal leaf | ||
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==Diagnosis== | |||
[[File:PoisonIvyOakSumac.jpeg|thumbnail|Rash]] | |||
*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== | ==Treatment== | ||
===Prexposure Prophylaxis=== | ===Prexposure Prophylaxis=== | ||
*Ivy Shield, Stokogard, Organoclay, IvyBlock | |||
===Postexposure Prophylaxis=== | ===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% | *if small can use topical Temovate 0.05% | ||
*topical anesthetic- menthol or pramoxine | *topical anesthetic- menthol or pramoxine | ||
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*Pentoxifylline- blocks formation of TNF alpha- suppresses allergic patch testing | *Pentoxifylline- blocks formation of TNF alpha- suppresses allergic patch testing | ||
*Put sunscreen first, then prexposure ivy cream, then mosquito repellant | *Put sunscreen first, then prexposure ivy cream, then mosquito repellant | ||
==See Also== | |||
*[[Rashes]] | |||
==Source== | ==Source== | ||
[[Category:Tox]] | [[Category:Tox]] | ||
Revision as of 00:17, 21 February 2015
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