To be absolutely brutal and honest with you, nobody cares about I look forward to hearing from you.. The practical reason is that it's one of the various standard and conventionally polite ways to end the body of the letter. It's just a standard exit.
1 In some cases, liver failure causes this taste to occur. 2  Gastroesophogal reflux disease can cause the salty taste (even when no pain is present). 3  Some medicines can make everything taste odd. for example the drug enalapril, which is a drug used to prevent heart failure.
Post Nasal Drip. Post nasal drips caused by sinus infections, allergies, or just excessive mucus production in the throat, results in mucus accumulation in the back of the nose and throat. When the mucus drains down to the mouth, it causes a salty taste in the mouth.