What Causes Contact Dermatitis?
RAST, Skin Prick test
Detailed Answer:
Hello and Welcome
I appreciate your concern
For food allergies two investigations are useful. These are RAST test i.e. Radioallergosorbent test and the Skin Prick test. For contact dermatitis the skin patch test would be an option. In the meanwhile , you should keep a food log and identify food or allergens e.g. certain clothes , soap etc that trigger such responses. Such allergens should be avoided completely. Anti-histamines like cetirizine and fexofenadine can be prescribed for a month. Oral corticosteroids can be added for a two week course if anti histamines alone aren't effective in consultation with your doctor. Montelukast, omalizumab etc can be resorted to, in certain selected cases.
Wishing you best of health
Thanks
Please consult your doctor before deciding on any further course of action.
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Dr. M.S. Khalil