bhai ok but how to fix cough and phlegm ?
Besides medicine, drink only water for a few weeks. Lay off tea - milk tea makes my cough worse, black coffee doesn't.
Box of tissues and blow every little bit out that you can.
Phlegm is coming from the top of the nose so once it's in lungs, you are screwed for a week minimum.
Get
T-Day from local pharmacy, I get mine from Pakistan and it's available everywhere. This is my go to pill the moment sniffles develop. It hardens the nose drip (from watery at start of infection) so it doesn't travel easily to throat and lungs. First line of defence, take this the very moment sniffles develop.
Don't let the nose drip get to your throat (& then lungs). Blow and spit it out all the time. Use a soft tooth brush and use at back of the tongue and above (it will remove the phlegm stuck on there).
Sleep on your side and blow out every single time you feel nose drip or irritation in the throat.
Salt is the killer of bacteria - medicine are made of salts. Lots of cooking salt in hot water and gargle - it will be awful but needs a must.
Lay off dairy products and oily stuff fullstop. Eat boiled eggs instead of fried.
Thankfully I've not had full blown flu (chest infection) for last 5 years following this regime everything hit by an infection. I get fever and aches sure but escape the worst which is chest infection.
Once chest is screwed, you'll need to do a course of antibiotics unfortunately.
Don't keep it in, box of soft tissues at hand all the time.