Abstract: A device, method and system for facilitating treatment of a sinusitis condition, including a heat source configured to deliver an output of heated air to the nasal passages of an individual, and a delivery component having a space through which the heated air output of the heat source may pass, the delivery component being configured for placement in the individual's nostrils. The system provides a heated air output source and one or more delivery components configured and sized to fit within the nostril of an individual, which may be used to deliver one or more courses of heated air to a user's sinuses through a nostril.