One thing we make that has helped to “thin the junk out” during colds and flu is a nice warm cup of tea. (Not hot, let it cool before drinking.)
Put water on to heat, then squeeze juice from 1/2 a lemon into your cup. Add 1/2 teaspoon powdered ginger (or fresh grated ginger if you don’t mind texture), 1-2 teaspoons raw honey, 1/8 teaspoon cayenne. Add water to the top of the cup when it is heated. Stir and let the tea cool until it is just warm.
You can certainly back off the cayenne if this tea is for a little one, but if a person can take the heat, it makes the ginger much more efficient.
I hope you are well my friend.
Take good care,
P.S. You can make this into a nice cough syrup by leaving out the water and adding a few Tablespoons of apple cider vinegar. Spicy and good! And very good for a sore throat.