A frequent reason for discontinuation of therapy is dry mouth, which is reported by as many as 80% of patients receiving the immediate-release formulation of oxybutynin (widely considered the ...

Dry mouth is the most reported side effect following radiotherapy for the treatment of head and neck cancer, affecting up to 70% of patients due to salivary gland damage.

If you have dry mouth, it can cause bad breath. It can cause an increase in cavities, increase in essentially gum disease. Saliva is beneficial to your immune system. It's got a lot of enzymes ...

With the inflammatory condition, “typically, both edges of the mouth become painful due to dry, swollen, red, and cracked areas,” says Ahuva Cices, MD, board-certified dermatologist.