Number of treatments depends on the illness and the seriousness of the illness. Everyone is different and reacts to the treatment differently. Some notice effects after merely a few minutes, others after a few sessions. Keeping in mind Halotherapy (Inhalation therapy) isn’t a get healthy quick, instant relief steroid inhaler. It is a drug-free all-natural holistic treatment of the respiratory system that takes time. The average number of sessions recommended by doctors in Europe is between 12-14.