Food Allergy Diagnosis and Treatment Market By Product Types (Skin Prick Test, Blood Test, Food Elimination Test, Polymerase Chain Reaction (PCR), Enzyme-linked Immunosorbent Assay (ELISA), Others), By Applications (Antihistamines, Adrenalin and Corticosteroids) And By Region - Global And Regional Industry Overview, Market Intelligence, Comprehensive Analysis, Historical Data, And Forecasts 2023 - 2030