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Wentzville, MO
A 54-year-old female asked:

Very itchy rash under arms and breast, behind knees and ears, inside elbows and in vaginal and anal area. skin biopsy show eosinophils. what does this mean? could this be a food sensitivity?

4 doctor answers8 doctors weighed in
Dr. Carlo Hatem
Pulmonary Critical Care 26 years experience
Possible : But it seems to be a systemic condition. Check with an allergist or a hematologist.
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Dr. Stanley Lightfoot
59 years experience
See below: The presence of alarge number of eosinophis suggests an allergic type reaction-drugs, food , some perfumes preseent in a variety of things all can cause this.
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Dr. Emily Altman
Dermatology 29 years experience
A number of causes: Eczema, drug reaction, bug bites, contact dermatitis, some autoimmune skin conditions and others can have an itchy rash and eosinophils on biopsy. Please see your dermatologist for a more definitive diagnosis and treatment.
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Dr. Doanh Nguyen, md, faaaai
Allergy and Immunology 15 years experience
Eosinophilic rashes: A variety of diseases can cause diffused skin rashes with eosinophilic infiltration including those mentioned in previous answers. However it seems like it affects both skin and mucus membrane and it is very diffused. Hypereosinophilic syndrome is a concern. Either an allergist, dermatologist, or hematologist can help you in this case.
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Last updated Dec 2, 2017

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