Steaming oranges with salt is not effective for treating wind-cold coughs because oranges are cold fruits and can only be effective for coughs caused by heat such as wind-heat, dryness, lung-heat and liver-fire, but not for coughs caused by damp-cold such as wind-cold and phlegm-damp, and may aggravate the symptoms of cough. Salt steamed oranges can indeed treat coughs. Oranges have a variety of effects such as regulating qi, resolving phlegm and moistening the lungs, etc. The orange peel contains orange peel oil and nacoglutinin, which are the main ingredients for treating coughs, and the salt itself has an antiseptic effect, which, together with the cough-suppressing ingredients in the orange peel, can help stop coughs and expectorant effects. You can make a flat cut on the top of the orange to expose a small amount of orange flesh to form an orange cup, sprinkle a small amount of salt in the flesh, poke it a few times with chopsticks, and then steam it for 15 minutes over low heat.