DREAM HOME

I wonder if this cough I still have for almost three weeks is an allergy reaction. Doctor already said my lungs was clean and I’m going to be fine.  But how come I’m still coughing especially early in the morning for this long period of time? If this is an allergy, well I have  to start taking allergy relief. I think I need one more check up to verify this is an allergy and hopefully not asthma or any other problem.