Our expert says:
It would be unlikely for a 65 year old to develop a wheat allergy. If worse in summer, it might be caused by grass pollen. The rash sounds more like eczema and may be caused by a contact allergen or even a low grade fungal or bacterial infection. The GP should check for pollen allergy and do a Skin Swab test to check for infection and perhaps thereafter also try a medicated anti-bacterial/anti-fungal shampoo.
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