Dry mouth. Patients often report a dry mouth that is not relieved by drinking. Dry mouth, medically referred to as xerostomia, presents problems beyond thirst. A lack of saliva makes the basic functions of chewing and swallowing difficult. It also prevents patients from fully forming their words while talking, making them difficult to understand. Dry mouth also encourages tooth decay and lays the foundation for the start of fungal infections. Medical professionals recommend mouth rinses designed to encourage the production of saliva in order to treat this symptom. Please keep in mind that dry mouth is not unique to Burning Mouth Syndrome, and any person experiencing it should immediately consult a doctor to find the root of the problem.