The best agent for thinning mucus is water. However, it may be that there is a continuous drainage causing your problem. So it is more of a volume issue than a thickness issue. If your cough is persistent, as you have described, it is probably a good idea to speak with your doctor to see if the cough needs to be treated in another way. It may be that the cough is being caused by an infection or
spasmCoronary artery spasm
Croup
Eyelid twitch
Facial tics
Hand or foot spasms
Urge incontinence
Vascular spasm of the small airways in the lungs. These problems need to be treated so that the cough will go away. Although coughing sounds similar in different people, the cause may be very different.
Make a clown face; in a hot morning shower move your lower jaw and tong as far down and back as you can (your teeth will be showing and smile exaggerated - clown face) while experimenting with different arches at the back part of the tong and forcing a cough, you will with a little practice find the right position to caught in, and when you do you will pull the worst heavy and thick phlegm up and out. what a sense of accomplishment! repeat till empty (usually 2-5 coughs). this may take a few mornings and without the assist of vitamins (vitamin C in particular is the most helpful 2000 - 3000 mg/day) it may take a few weeks. my rational why this works; if you can get the force of wind from a cough to blow by the two small holes in back upper cavity of mouth/throat that lead to sinuses it creates a vacuum enough to pull the start of the phlegm. it is up to you to pull the rest of the phlegm out with hacking or sucking action or by grabbing and pulling it as I have done once or twice, paper tissue helps in the grabbing process.
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