The symptom you reported (salty taste in the mouth) might be related to many causes.
Bacterial or viral inflammation of the mucosa in close organs such as sinusitis (sinus inflammation) or rhinitis (nasal inflammation) might cause production of excessive mucus which is then presented as postnasal drip. It is possible that the postnasal drip might cause the salty taste in the mouth. You might want to visit an Ear, Nose and Throat specialist to check for sinusitis or rhinitis.
The saliva is a solution of many substances, certain of which have a salty taste. If the person is slightly dehydrated or at least takes insufficient amounts of water in the body, then the saliva might become more concentrated and feel more salty in the mouth. Increasing the intake of water might turn out to be helpful.
Various medications might cause a salty taste in the mouth especially if their effect includes eliminating more fluids from the body. You might consult with your doctor to see if one or more of the medications you might take can cause a salty taste in the mouth.
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