http://www.sleepreviewmag.com/Articles. ... d=S0501F02
Dry, congested, and/or sore noses and throats are the most common side effects associated with CPAP treatment. Up to 75% of patients may experience these symptoms. Patients also commonly (50%) complain about side effects related to the mask fit, such as air leaks, silicone allergies, pain, or abrasion to the bridge of the nose and pressure sores. Other adverse effects of CPAP include aerophagia (air swallowing), bed partner intolerance, claustrophobia, chest discomfort, and inconvenience.