I'm really grateful you're getting better. I had a very strong flu two years ago, it was the toughest flu (or any diseases) i ever had. I fall apart and lost conscious three times, the cough was very strong that i wouldn't be able to breathe for a few seconds. It was really terrifying experience, and from what i read it is quite simialr to covid-19 symptoms.

For the throat issue, we use hibiscus (hot) with ginger. It really helps a lot to relief the pain and ease your breathing.