What Causes Prolonged Tickling Throat, Cough, Wheezing And Shortness Of Breath?

Hello, I m a 25 y.o male (non-smoker). I wake up every morning with my throat having a tickle, inflamed, coughing, wheezing and shortness of breath. I ve been taking Mucinex for the last 3 days and it ll help through out the day. During the day i would still have a tickle in my throat which causes my to cough so much i start to gag, then my throat will feel like it s closing up. I would barely cough mucus, i m assuming because of the Mucinex. Even at night when i take my 2nd dose of Mucinex (1 every 12 hrs) I would still wake up feeling the same symptoms as always. I have been diagnosed with reactive airway disease, which only happens when i m really active like running or doing something straining (repeatedly lifting heavy stuff). I have an appointment with my physician in a week. I m just wondering what i could do in the mean time. I loathe having this constant cough and tickle in my throat which sometimes triggers all the other symptoms. What do you recommend i do?