Hello lybrate-user,
steam inhalation helps clear the mucus in the airways and that's why estimated as the best home remedy to treat common cold and respiratory infections. Coming to your question, steam inhalation with careful precautions, dialy for 10 to 15 minutes, 2 times a day is good for your airways. Remember the fumes should not be hot but warm in temperature. In that way you can avoid getting sore throat etc.
Take strepsils or cofsils for itchy throat for now and stop steam inhalation for a day or two.
If not resolved, feel free to message me in private.