I had one of those experiences a while back where the conclusion is so obvious that you wonder how you hadn't worked it out many years earlier. I actually did

I had one of those experiences a while back where the conclusion is so obvious that you wonder how you hadn't worked it out many years earlier. I actually did rest and drink plenty of fluids when I had a horrible cold. I stayed in bed for most of the next 24 hours, sleeping when I could, at a comfortable room temperature and with a little ventilation. I made sure I drank several pints of water during that time, even though at first my sore throat was hurting every time I swallowed and I really didn't want to. One day later, a condition that had felt like it was going to give me at least another week of unpleasantness was already greatly improved. Not fully recovered, but much, much better, far beyond anything any cold remedy medication had ever done for me (though the real medicine did also help with decongestion and allowing enough comfort to fall asleep). It turns out that doctors have been right all along and it was just me not getting it, fooling myself into thinking that if I went to bed a bit early and had a few extra sips of water then I was following the doctors' advice.