Everyone in the house is sick lol. My 10 M has a runny nose, cough and sounds like he is losing his voice. He is still VERY active lol but he wants all eyes on him. He also has a slight decrease in appetite. Any recommendations to help him out?

My 3Y has a runny nose and cough. Also very active so im not to worried about him just yet. But any recommendations on how to help him as well?

I dont want to pump them with medicine so home remedies please