How Are Food And Skin Allergies Diagnosed? Please Doc Hlp Me Out. Home » Questions » Allergies & Asthma » How Are Food And Skin Allergies Diagnosed? Please Doc Hlp Me Out. 0 Vote Up Vote Down Anonymous asked 8 years ago How are food and skin allergies diagnosed? please doc hlp me out. 1 Answers 0 Vote Up Vote Down Nationwide Clinics Staff answered 8 years ago Hello, Usually these are skin allergen tests and blood allergen tests available. You can get these done in any lab which supports it. You can step into any of the NationWide clinics in Bangalore or Delhi and ask for these. Regards, Dr Gowri Kulkarni