Nasal douche (rinsing) recipe

Boil half a liter of water to sterilize it and allow it to cool down.

Dissolve in it:

½ teaspoon salt

½ teaspoon bicarbonate of soda

½ teaspoon sugar

Heat a small amount of this solution to body temperature and sniff or squirt it into your nose 2-4 times a day. Wait for 3-4 minutes, and then blow your nose.