Does anyone know if hayfever can develop into asthma? My husband starts out with headache, nasal stuffiness, sneezing etc. This happens after being outside all day.It usually starts effecting his lungs and he starts coughing up green mucous. He can't hardly breath.
The hospital said it was emphysema but I don't agree. Why would emphysema start out with headaches, nasal stuffiness and sneezing?