sunil123, God Bless you. I battled extra mucous in the back of my throat and excessive slimy saliva from having had COVID. I tried so many things. I, like you went through many tests and doctors could find nothing. I believe COVID attacked my Salivary Gland and caused extra mucous in the back of my throat. I am very prone to upper respiratory infections and I believe I was hit hard from COVID in that area.

I am cleared of this after 2 years. BUT, if I get an upper respiratory infection, the mucous/extra saliva ramps up for a little while until the infection clears.

These are the things I tried. Some of them, helped some didn't. Please consult your doctor before trying:

1) NAC supplement by Thorne as it helps with inflammation and it is like an antihistamine. I had to drink extra water with this as it will dry you out if you don't....eyes included. I only could tolerate 1/2 of a 500 mg capsule.

2) I scraped my tongue with a tongue scraper daily....first thing in the mornings were the worst. I did this a lot at the onset and then was told by a professional to not scrape as often.

3) I upped my dental hygiene with Peroxdyl by Colgate (Dentist recommended) and a Waterpik and of course, brushing & flossing. You hold the Peroxdyl in your mouth for a few seconds, swish, spit out and rinse your mouth. Do not swallow. The Dermatologist who was the only one that cultured my mouth, told me to use Listerine zero to keep bacteria down. I did not do this along with the Peroxdyl, but, at a different time of the day. The excessive salvia/mucus was worse in the mornings.

4) I faithfully took vitamins being: Vitamin C, Vitamin D3 +K2, B Complex, Zinc, NAC, Quercitin, Omega 3, Magnesium.

5) I would get choked on this stuff at night. I recommend elevating your head with extra pillows or putting blocks under each side of the head of the head. This is also good for acid reflux. By the way, my Acid Reflux worsened as well. I question if the two worked against each other. I had to increase my Acid Reflux meds for several months.

6) Drink lots and lots of water. Water helps to thin out mucus.

7) I also did salt water rinses & coconut oil pulling.

8) I did find that certain foods made it worse such as salty foods.

Praying for you as I know how frustrating and time consuming this is. Blessings....