Friday, October 24, 2014
Tuesday, February 01, 2011 Mary, Community Member, asks

Q: Can a Cpap machine cause a sore throat?

I have been using my Cpap for about 2 months and for the most of this time my throat has been sore. At New Years...I saw a doctor for this...did a strept test and tested negative, but was given 500mg of Amox. Could the Cpap be the problem?
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Answers (2)
PhilB, Community Member
2/16/11 4:00am

When using a CPAP machine with a setting of 10 or higher it is recommended to use a humidifier which also has a heating option to keep air from become too dry and causing a dry sore throat in morning.  The small water tank can use tap water and filled nightly. The humidifier must be a part of the CPAP machine.  External humidifiers will not help.  From my experience with the humidifier CPAP machine there will be some moisture (water) build up in the airway hose.  I found that this can be resolved by elevating the hose as much as practical immediately next to the machine.  Since the moisture is heavier than air nearly all the excessive moisture will be returned to the machine.  Not elevating the hose will result in bubbling sounds as the water build up blocks the air passage.  Filing the tank all the way to the "line" is too much and can push water into the hose.  Never fill the tank all the way to the line.

Healthminded, Community Member
11/11/13 7:37pm

When using a CPAP, sore throat considerations might include being sure that you are not breathing through an open mouth, that your humidifier is operating with the correct setting and you have filled the reservoir with water, and that the reservoir and tubing are clean and germ free.

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By Mary, Community Member— Last Modified: 11/11/13, First Published: 02/01/11