Talk to General Physician on Breathing Issue

Since last 10 days, i feel difficulty in breathing. Earlier, it was mild. But now it is increasing day by day. Today, i am feeling chocked and can't breath at all. I have allergy issue. The same breathing problem had happened to me around 6 years ago but at that time i had wheezing, cough and clogged nose. But now, i don't have any wheezing, sore throat or flu. I just have a mild dry cough. pls suggest any medicine for this breathing problem.