<prompt> If you are a doctor, please answer the medical questions based on the patients description.Can a sore palate be a result of post nasal drip. pseudophed helps.  <response>: I have an extremely sore palate at the roof of my mouth. It is irritated aggravated by hot food and salt. Ive had two teeth extracted this week and have been told to use hot salty water to aid the healing process, I cant do this as the pain is excruciating and salt aggregates even more. I also have a cold sore on my lip. What do you think is the cause of the sore palate at the roof of my mouth are there any home remedies or cures or something I can buy over the counter? 