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Dr. Ravinder Verma answered : 11 years ago
When there is Nasal Obstruction, you start breathing through mouth and hence there is dryness of mouth. Snoring and sleep apnoea patients also have dryness of mouth. In post irradiation for cancers ,there is dryness of mouth. However do nasal breathing exercises , change in life style, reduce weight, keep the head end up during sleep, sleep on sides. You can try sialagouges( Churan, Candies) and lot of water