According to my pulmonologist, a dry cough, when done correctly, I still disrupting the mucus that is in your lungs, which helps prevent pockets or pools forming where bacteria can hide and grow.

Two things that help me when producing little sputum are vigorous exercise and yoga poses that get my head and chest down. Often after interval walking at high-medium-low speeds or 30 minutes of yoga, I do clear a little mucus.

According to my pulmo, it also helps keep the bronchi as flexible as possible. She just cautions me to cough from the lungs and not the throat.