No cure so you gotta rest. Nose is stuffed so you gotta mouth breathe. Throat is dry from mouth breathing. Dry throat makes it painful to swallow. Pain keeps you from sleeping and recovering. Lack of sleep leads to worse symptoms like piercing headaches. Need to rest to get rid of the headaches. Headache and swallowing is too painful to rest properly. Lack of rest perpetuates headaches, nose congestion, dry throat, painful swallowing.
What is this BS
Interesting study, but the sample size of 54 is a bit too small, and usually strong medical research requires placebo controlled randomized trials. The ones that received medicine in this trial had to meet a specific criteria I.e. not randomized. Still interesting study to build off of nonetheless