Doctors sometimes prescribe drugs such as Salagen and Evovax to treat severe dry mouth, according to WebMD. Rinses, sprays, mouthwashes and moisturizing gels are also available for treating dry mouth. Sucking on ice or chewing gum can also improve the symptoms.
Treatments for dry mouth often attempt to correct the cause of the condition, says WebMD. If the dry mouth is due to a medication, treatment revolves around adjusting the medication. If the dry mouth is due to damaged salivary glands, treatment includes improving saliva flow. Salivary glands can be damaged by radiation, chemotherapy or an autoimmune disease called Sjogren's syndrome.