Some remedies for a dry, rough tongue include taking a sip of water, breathing through the nose, adding moisture to the air and chewing sugar-free gum. Dry, rough tongue is a symptom of a condition referred to as dry mouth. This condition occurs when glands that make saliva do not function properly, notes MedicineNet.
Some of the functions of saliva include protecting the teeth from decay, help in food digestion, protection against infections and facilitating the processes of chewing and swallowing. If the salivary glands do not produce enough saliva, the result is a dry mouth.
A dry mouth is characterized by a sticky, dry feeling in the mouth and a dry, rough tongue. Other symptoms include a burning sensation in the mouth, development of sores, cracking of the lips, possible occurrence of a mouth infection and trouble chewing.
A dry mouth can be remedied by occasionally taking a sip of water to moisten the tongue. When the air in a room is dry the symptoms may become worse. This can be remedied by adding moisture by the use of a humidifier. Over-the-counter saliva substitutes may help reduce most of the symptoms of dry mouth.
Individuals with the flu tend to breathe through their mouths instead of the nose. This may worsen the symptoms of a dry mouth. Be sure to breathe through the nose. Avoid smoking and alcohol as these may worsen the condition, according to Mayo Clinic.