Overview
Cotton-seed itch, also known as urushiol-induced contact dermatitis, is an allergic skin reaction caused by exposure to urushiol, a resin found in cotton-seed plants and other plants like poison ivy and poison oak. The condition manifests as an itchy rash upon contact with contaminated materials 1.Diagnosis
Clinical presentation of pruritic erythematous rash following exposure to cotton-seed products.
Patch testing may be considered for confirmation in atypical cases 1.Management
First-line: Emollients and cool compresses to alleviate itching and discomfort.
Topical corticosteroids: For localized inflammation, use moderate-potency corticosteroids (e.g., triamcinolone acetonide 0.1% cream) 1.
Oral antihistamines: Second-generation antihistamines (e.g., cetirizine 10 mg) for severe pruritus 1.Special Populations
Pregnancy: Use of topical treatments is generally safe; consult dermatology for severe cases 1.
Pediatrics: Emollients and mild topical corticosteroids are preferred; avoid systemic treatments unless necessary 1.
Elderly: Increased skin sensitivity may necessitate lower potency topical corticosteroids and close monitoring for side effects 1.
Comorbidities: No specific adjustments noted; manage based on overall health status 1.Key Recommendations
Use topical corticosteroids for localized inflammation (Evidence: Moderate 1).
Administer second-generation antihistamines for severe pruritus (Evidence: Moderate 1).
Prioritize emollients and cool compresses for symptom relief (Evidence: Expert opinion 1).References
1 Collada C, Gomez L, Casado R, Aragoncillo C. Purification and in vitro chaperone activity of a class I small heat-shock protein abundant in recalcitrant chestnut seeds. Plant physiology 1997. link