Humid air is good for nasal congestion. A glass of water in your room will keep the air humidity. In addition, steam machines that keep the room moist can be a solution to your nasal congestion. Ocean water is known to be good for nasal congestion, but it is difficult to obtain. Add 1 teaspoon of salt to a warm glass of water and clean your nose. You can also add a teaspoon of carbonate to maintain the pH balance. A few drops of olive oil will drip into your nose and take away the blockage.