Suggest Remedy For Cough Throat Pain With Burps

My daughter was recently in okinawa japan while over there she had a cough for about two weeks and now that shes is home when she is sleeping she said she feels a tickle in her throat and then she will cough but then she is gasping for air she said her throat gets tight that lasts for about 20 to 30 seconds and she'll burp and then she is fine but this happens 5 to 6 times a night since she is home