Hydration
Water is also crucial to a person’s recovery from a viral infection, such as a cold, to help loosen mucus and to replace any fluids lost via a fever.
Nutrition
“Ensuring that you eat lots of prebiotics – fruits, vegetables, nuts, and seeds, for example – will help strengthen your immune system to fight back against colds,” added Guerrini.
And taking vitamin C – whether it be from citrus fruits or supplements – can also help to shorten the length of time you have a cold, Guerrini verified.
Preventing a sinus infection
Some people may find that their cold symptoms linger for up to 10 days or more, which can be a key indicator that it’s turned into a sinus infection.