What can I do for a sore throat during pregnancy?

Hard candies. Sucking on hard candies can soothe the throat with no risk. Salt water gargles can also help. Pain could be from reflux, Tums (calcium carbonate) helps. If severe see doctor to rule out infection.
Pregnancy. There are many causes of sore throat including allergies, viruses and bacteria. Bacterial causes such as strept throat should be properly diagnosed so that antibiotics can be started. If you have fever or feel ill with the sore throat, you should see your care provider to diagnose the reason.