Best way to get rid of congestion?

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.