Thanks for posting your query,
Strong salty taste in your mouth can be because of abscess
Sometimes due to food lodgement in the healing socket there can be formation of abscess, after extraction healing process starts and there is increased salivation due to which you may feel salty or nauseating feeling.
Follow the post operative instructions properly , regular rinsing with lukewarm water
use antiseptic mouthwash solution , take semisolid diet , this will help in preventing infection and fasten the healing process .
Take complete course of antibiotic and analgesic
If the symptoms still persists you can visit to your Dentist
and get complete clinical evaluation done.
Hope this helps out.