thanks a lot!

No medical people mentioned this. They just said "let's see how it is going".

Thanks a lot! my poor boy is still coughing now,at the moment he is getting much better as the steroid oil he took has taken effect (steroid oil takes full effect after 4 hous ,I was told ) and it is nearly 4 hours since he took last steroid oil.

The most worry is what I should do if he still keep coughing without stop  at 12:00am when he will have taken steroind oil for 12 hours, and then the medicine effect will be gone ?

I will try hot steam as you said. Thank you very much!