After using a saline and it goes in the back of your throat why does it cause your throat to hurt or feel like a sharp sensation raspy like and a bad taste in your mouth . is this nasal drip to the throat and how can i take the taste of it away?

Residual liquid: Saline nasal Washes are a great way to clear mucus, bacteria/viruses, and particulates from your sinuses and nasal passages. It is important that after you do the saline nasal wash, you take care to empty your nasal passages and sinuses. You can do this by bending over so that your head is by your knees (excess liquid will pour out of your nose). Gently blow your nose with a tissue or cloth.