When was your last dental checkup? It may possibly be an abscess with pus draining out, resulting in a salty taste.
Well, if its an abscess, its just draining from the infection. If you saw your dentist a few days ago, maybe its nothing too serious. A cold or canker sore perhaps?
Ironically, I went to the dentist on Monday but I felt the sore come on before then as I felt pressure against the sore spot before it happened. What would cause pus to drain out?
Thank you for your time.