What can cause difficulty swallowing saliva?

Dysphagia. Difficulty in swallowing is caused by, lesions in the mouth and pharynx or larynx, neuromuscular disturbances, mechanical obstruction of the oesaphagus, tonsilar abscesses, Ludvig's angina, and carcinoma of the tongue, excessive dryness or thirst,and acute alcoholic inebriation. It is a problem and if it does not disappear in a few hours you should seek professional attention quickly.