The Type segmentation of the Stubborn Allergic Rhinitis market distinguishes four therapeutic classes: oral antihistamines, intranasal corticosteroids, leukotriene‑receptor antagonists, and allergen‑specific immunotherapy. Oral antihistamines, primarily second‑generation agents, dominate due to over‑the‑counter availability and rapid symptom relief, accounting for roughly one‑third of total sales. Intranasal corticosteroids, delivered via sprays, provide the most robust anti‑inflammatory effect and capture the second largest share, especially among patients with chronic exposure. Leukotriene‑receptor antagonists serve a niche of patients intolerant to steroids, contributing modestly but growing in combination regimens. Allergen‑specific immunotherapy, administered subcutaneously or sublingually, represents the longest‑term disease‑modifying approach; its market share remains limited by high cost and adherence barriers, yet it is projected to expand as precision‑medicine adoption rises. Collectively, these types shape the overall market size by aligning product pricing, reimbursement pathways, and prescribing habits, offering a clear view of the Stubborn Allergic Rhinitis segmentation landscape.