There is a simple breathing exercise to unblock the nose developed by Russian doctors. About 200 doctors taught it to thousands of their patients. Most patients, according to published studies of these doctors, could unblock their nose in about 2-3 minutes.
Steps to follow
Pinch your nose and start walking quickly with your nose pinched and your mouth closed. You probably will be able to make 20-30 steps. Hold your breath until you get a strong desire to breathe (air hunger). Sit down with your spine absolutely straight and focus on your breathing. After releasing your nose, while sitting, resume your breathing but keep the mouth closed. Instead of taking your usual big inhalation, take a smaller inhalation and then immediately relax all muscles, especially upper chest and all other breathing muscles. Take another (smaller) inhalation and again completely relax. With each breath, take a small or reduced inhalation and then completely relax. The goal is to preserve this level of air hunger for 2-3 minutes with maximum possible relaxation of the body. The breathing is frequent during this reduced or shallow breathing but this is OK.
If later your breathing becomes heavy, your nose will get blocked again. Then you can repeat this exercise.
Our breathing pattern has profound effects on circulation and blood supply to all tissues. For example, breathing through the mouth affects hundreds of biochemical and physiological processes in the human body. Sleeping on the back can make breathing about 2 times heavier reducing oxygenation and triggering sleep apnea, mouth breathing, headaches, anxiety, panic attacks, and many other problems.
If you retrain your breathing pattern, so that after your exhalation, you can comfortably hold your breath for 30 or more seconds, your problem with the blocked nose will disappear. Thus, a permanent solution to the problem of a blocked nose is to have normal breathing parameters 24/7 to sustain good body oxygenation.
Some medical professionals are aware about the crucial role of the HVS (hyperventilation syndrome) in nasal congestion, as this abstract indicates:
Bartley J, Nasal congestion and hyperventilation syndrome, American Journal of Rhinology 2005 Nov-Dec; 19(6): p.607-611. Waitemata District Health Board, Auckland, New Zealand.
BACKGROUND: This article evaluates the prevalence of hyperventilation syndrome (HVS) in patients who continue to complain of ongoing nasal congestion, despite an apparently adequate surgical result and appropriate medical management. METHODS: Prospective case series of 14 patients from June 2002 to October 2003 was performed. Patients, who presented complaining of nasal congestion after previous nasal surgery and who appeared to have an adequate nasal airway with no evidence of nasal valve collapse, were evaluated for HVS. When appropriate, nasal steroids and oral antihistamines also had been tested without success. Three patients had end-tidal P(CO2) levels measured and five patients underwent breathing reeducation. RESULTS: All patients had an elevated respiratory rate (>18 breaths/minute) with an upper thoracic breathing pattern. Twelve of the 14 patients complaining of nasal obstruction had an elevated Nijmegen score indicative of HVS. An average number of 2.5 procedures had been performed on each patient. End-tidal P(CO2) levels were < or = 35 mmHg in the three patients who had expired P(CO2) levels measured. Breathing retraining was successful in correcting the nasal congestion in two of five patients. CONCLUSION: HVS should be included in the differential diagnosis of patients presenting with nasal congestion, particularly after failed nasal surgery. One possible explanation is increased nasal resistance secondary to low arterial P(CO2) levels. Another possible explanation is reduced alae nasae muscle activity secondary to the reduced activity of serotonin-containing raphe neurons. Additional surgery may not necessarily be the answer in HVS patients complaining of nasal congestion.