A method of treatment and a nasal treatment delivery device for mixed carbon dioxide and saline for treating head ailments includes: a) a main housing having a hollow central area containing a dosage that includes a saline fluid and a gas containing carbon dioxide b) a dosage dispenser head located at the distal end of the main housing, and having at least one flow channel for movement of the dosage from the main housing through the dosage dispenser head and to external of the dosage dispenser head c) a dosage release control component located between the main housing and the dosage dispenser head to permit flow of the dosage through the dosage dispenser head in response to increased pressure against the dosage and d) a pressure-changing moveable component located on the main housing.
