Allergy Treatment Market Size, Share & Industry Analysis, By Type (Allergy, Food Allergy, Insect Allergy, Skin Allergy, Dust Allergy, Pet Allergy, Latex Allergy, Others (Pollutant Allergy, Mold Allergy)), By Treatment (Medications, Immunotherapy), By Route of Administration (Oral, Parenteral, Nasal, Others) And Regional Forecast, 2026-2034