question: Hi , I had a little sneezing and cough mostly dry cough . Cold is gone automatically but it feels like throat has some blisters i can feel it while swallowing and i feel pain and throat feels very dry. do not have fever but little throat and pain and burning in food canal. i am planning to gargle with saline water is it ok or should i take any medicine i did take benadryl twice yesterday and day before yesterday night.