Evaluating for Contact Allergies in Patients With Chronic Urticaria
Urticaria, Patch Testing, Dermatitis
About this trial
This is an observational trial for Urticaria focused on measuring urticaria, hives, dermatitis, rash, contact dermatitis, contact, contact sensitization, allergy, allergen, patch testing, IgG, delayed-hypersensitivity reaction, hypersensitivity
Eligibility Criteria
Inclusion Criteria:
Patients must have a documented diagnosis of chronic urticaria, which is defined as:
- urticaria (hives), in which each individual lesion lasts less than 48 hours,
- urticaria which occurs several times per week,
- urticaria which has lasted in this manner for a minimum of 6 weeks.
Referring physicians will be asked to provide this documentation, and patients will be asked to confirm these characteristics. Patients should have already undergone a workup to exclude other causes of their urticaria, and if any abnormalities have been encountered, these abnormalities would need to be insufficient to explain the extent of their urticaria.
Exclusion Criteria:
- Those patients with an explanation for their chronic urticaria.
- Patients may have their test postponed if they are currently using topical steroids to the area to be tested, or are taking prednisone or its equivalent daily.
Due to PI moving locations, no additional information available.
Sites / Locations
- Tufts Medical Center, Department of Dermatology
Arms of the Study
Arm 1
Patch testing
Patch testing on patients with chronic idiopathic dermatitis.