If your nose is very congested because of a cold, spring fever or bronchitis etc. one of the things that you can do to get relief is to make a steam tent. This is how you do this. Boil up some water, remove it from the heat source and place the hot boiled water into a heat proof bowl. Put a small amount of Vicks Vapour Rub into the water after it has been removed from the heat source.
Place a bath towel over your head and let it cover the bowl to form a tent. Be careful not to let the towel touch the hot water. Keep the bowl firmly in place and place your face about 12 inches from the water and slowly breath in and out the steam vapours. This will help soften up mucus and dislodge it from your nasal passages. Close your eyes to protect them.
At all times be careful not to scald yourself with the very hot water. Blow out your nasal passages with paper tissues.
I do not recommend a steam tent for children. Fill up the bathroom with steam for them. My mother did this for my sister, when she had severe bronchitis when she was little.