How Do You Relieve Yourself From the Cough and Wheezing?

Question

I have been having a very bad bout of wheezing and when I consulted the doctor, he examined my chest and said that I indeed had wheezing. My nose felt stuffed and leaky. He gave me a Depo-Medrol injection and an antibiotic called Tequin and I was beginning to get better but  before that, I had so many errands to do and so much shopping  and all in that humid heat that once when I went into a store in flea market, I started coughing so badly that I could hardly stop. I soon got to my car for a drink of water that I always carry with me and tough I felt a wee bit better, the bones and muscles in my chest hurt so much all day long. Since then, I have been coughing and having a stuffed nose on and off and the post nasal drip and the wheezing are really beginning to get on my nerves. Has anyone experienced such problems? I would be really happy if someone could help me out of this one please.