cpap pressure is not as high as you would think. what is your pressure? i doubt it causes the ear infection. i had a time when my ear popped when i put the mask on, but it wasn't caused by the pressure. the doc told me to use sudafed and it went away the first day. not telling you what to use, just saying what i was told and that it worked. definitely see your ent because you may have some other undiagnosed medical condition that is just now presenting symptoms for the first time.