 [ Symptoms ] my dad has chronic hiccups for the last 2 months every 5 seconds nothing has worked from his doctor specialist  a couple years ago he had prostate surgery they caught the cancer early and were able to remove it he is changed his diet to bring down his cholesterol and blood pressure he is 56 150 pounds his doctors has prescribed him medication liquids but nothing has worked and it is even worse today i do not know if there is a specialist that handles this type of thing there is not much information online about it what should be the next step here where do we start [ Disease ] ask you ob about mucinex since there are many types and combinations diphenhydramine is the generic name for benadryl your ob can provide you will a list of safe medications you can take during your pregnancy antihistamines like diphenhydraminebenadryl will not open up a stuffy nose they are used to dry a drippy nose try nasal saline sprays and a humidifier colds are not the only thing that can cause a stuffy nose when you are pregnant those raging hormones can also cause cold like stuffiness