Whever my mom eats food with starch, she gt sores on her tongue.....and her tongue is dry most of the time especially when she is sleeping?

Dry tongue: Your mother may sleep with her mouth open and that would cause a dry tongue. Some medications also cause a dry moth/tongue. There is a gel that you can buy over the counter which you put in your mouth right before going the sleep. It really works-i use it. The sore s on her tongue may be canker sores, she should see a dermatologist.

Need moisture: Use bitene to assist in keeping moisture in her mouth.