I Have Had This Very Bad Cough And Wheezing For

I have had this very bad cough and wheezing for 5 months now, it used to come in only in nights when i would lay back but now it has interfeered with my every day life, when i excersise when i eat, even when i want to laugh the cough chokes me up, also when my body is cooling down from excersise the doctors have given me inhalors they seemed to help for about 2 weeks or so but now they dont help at all.