Just now going through my first case of flu in a good twenty years and it is nothing nice.
It's no worse by any means. It's just a normal winter flu.
This thing is going around already a couple of months. A lot of my friends got it. It's interesting because you don' get high temp.
I went through that flu or whatever virus it is 3 weeks ago. It was bad just the first 3-4 days and after the 5th day it started to going down. After the 7th day, I was fine and I was going to work all that time.
I don't like any synthetic meds, so I didn't any medications, except a few alka zeltzer the first day. I beat it only with hot tea, vitamins and supplements and nasal rinses.
The infection definitely starts in the nose/sinuses and then spreads down the throat and lungs. If you don't take serious care on time it may cause bronchitis or even pneumonia.
It irritated a lot my sinuses because I have already sinusitis. It tried to go to my lungs too, but I stoped it right form the beginning with old fashioned overnight compresses and hot tea. I big job did this nasal rinse that is sold in Walmart for about $12:
https://www.amazon.com/NeilMed-100-Sinus-Rinse-Complete/dp/B000RDZFZ0?th=1
https://shop.neilmed.com/products/neilmed-sinus-rinse-kit-with-60-packets
I have the bottle form a couple of years ago. Instead of buying extra packets I make my own solution which is 1g of salt and 1g of baking soda. That'a also the actual ingredients of the packets they sell - sodium chloride and sodium bicarbonate. I was doing nasal rinses several times a day and it helped me a lot.
Also excessive doses of all vitamins (mostly C, D, B), including elderberry capsules and tea, and also turmric + black pepper capsules.
After the 3rd week I still has some mucus sliding down my throat and minor cough.