The Application dimension of Chronic Cough segmentation isolates market demand by end‑use, revealing distinct revenue drivers. The pharmaceutical segment dominates, accounting for roughly 60% of total spend, as it encompasses small‑molecule antitussives, biologics, and emerging RNA‑based therapies that target underlying inflammatory pathways. Diagnostic applications, representing about 25% of the market, include spirometry, cough frequency monitors, and biomarker assays that enable clinicians to differentiate chronic cough etiologies and guide treatment selection. The therapeutic‑device niche, contributing the remaining 15%, comprises nebulizers, cough suppressor devices, and wearable acoustic sensors that provide symptomatic relief or real‑time monitoring. By quantifying each application’s share, analysts can forecast investment flows, prioritize R&D pipelines, and assess regulatory impact across the chronic cough landscape.