my son used to keep coughing like one year and I finally
through away all of his toys away, clean up his room put every small thing inside the cupboard. I also have the maid to seriouly clean up his room every morning including evevery hole and the wall skirt, change bedsheet everyday/
another day, after a while! He doesnt need to go to the doctor for a very long time.......and I also have the maid to open his room's windows every morning to let the fresh air in! I hope this can help you and your baby