Hi and welcome to the forum!
Is your mask a nasal mask, covers just the nose? Some people will get a full face mask (covers nose and mouth) if they find they get lots of colds or have other nose breathing issues from time to time. The key is you want to be breathing well enough through your nose if it's a nasal mask, so you're not mouth breathing too much, and not getting the full benefits of your cpap pressure. Perhaps others might have some suggestions. Hopefully you don't get many colds. Actually, with cpap, I find I get far fewer colds than I used to. But sometimes I've had a cough, and that is hard with cpap, because the air pressure aggravates the coughing.
If you find the heated humidity helps, keep using that or increase the humidity. Some people may have inflamed nasal passages with a cold and actually feel better with the cooler air, with just cool passover, no heated humidity. Depends on the situation.
Is it getting any better?
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