Inhalations with dry salt spray are the safest form that can be used without the supervision of a doctor.

Treatment with inhalations is one of the oldest methods of treatment, it was already known in antiquity. Even then, it was probably known that inhalation of medicinal agents in respiratory diseases brings greater benefits than oral therapy. The inhalation action in this case is more effective than taking pharmacological agents orally, due to the direct effect of the drug substance on the site of the disease, i.e. the mucous membrane of the airways, bypassing the hepatorenal kidney.

The dispute over whether or not inhalation works on the whole system or only on the airway mucosa was finally settled in the 19th century. The lungs include a large area through which inhaled substances are absorbed in a very short time.
Absorption of the substance and expected action is extremely fast, comparable to intravenous injections.

Medicinal substances get into the blood, affecting its chemical composition and through it affect the other tissues of the body. In this way, inhalation treatments have an impact on the entire body.

A dry salt aerosol is produced using specialist salt aerosol generators. It has the form of crystalline dust with very small particle sizes, thanks to which it has the ability to reach the furthest sections of the respiratory system. Due to the strong hygroscopic properties (susceptibility to moisture absorption), the particles, when they are in a vapor-rich atmosphere of the airways, change their state from solid to liquid, increase in size and settle in the bronchioles and alveoli in the form of small brine droplets. The dry aerosol is generated in the halogenerator by strong mechanical action on the salt crystals.