It was fine but I am not fine.
In the morning my body temperature was 39.4 degrees centigrade. And I felt cold and had coughs. So I decided to take a day off.
While antifebrile is effective, I am OK. But after 6 hours or so I have high fever again.
Japanese soul food is okayu (お粥), porridge. So I ate it.
I hope I will be fine soon.