7 doctors weighed in:
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?
7 doctors weighed in

Dr. Doanh Nguyen
Internal Medicine - Allergy & Immunology
3 doctors agree
In brief: 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.

In brief: 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.
Dr. Doanh Nguyen
Dr. Doanh Nguyen
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Dr. Emily Altman
Dermatology
1 doctor agrees
In brief: 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.

In brief: 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.
Dr. Emily Altman
Dr. Emily Altman
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In brief: 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.

In brief: 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.
Dr. Stanley Lightfoot
Dr. Stanley Lightfoot
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Dr. Carlo Hatem
Internal Medicine - Pulmonary Critical Care
In brief: Possible
But it seems to be a systemic condition.
Check with an allergist or a hematologist.

In brief: Possible
But it seems to be a systemic condition.
Check with an allergist or a hematologist.
Dr. Carlo Hatem
Dr. Carlo Hatem
Thank
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