My dear friend has been diagnosed with stage 3 borderline 4 tonsil cancer. I have been doing lots of research and asking doctors on advice on what he will be going through. My doctor suggested to look into an oral suction machine because he may need one later in his radiation treatment. My friend called the the cancer center he is going to asking what kind and to get more info. I guess a staff member spoke to him, who said absolutely not. She said his he mouth will be very sensitive and he can poke a hole in his cheek. All the things i have read I never came across this. Has anyone else heard or found out complications with this device?