Dermatology Questions? Ask an Online Dermatologist.
This is Dr. David
you could have sjorgren's syndrome which is an autoimmune condition which can cause severe dry mucosa in the lips, nose and eyes.
you could have stomatitis or oral lichen plantus.
you need to see a doctor to get a lip biopsy to check for sjorgren's syndrome to help with diagnosis to see what the best method of treatment is for you.
do you have a doctor you can see who can get a lip biopsy for you and evaluate your situation?