Newly diagnosed after a 3 month-long chest infection. Apparently it was made on my GP's notes a full year ago but I was never told or guven any meds 
New GP bow saying they know it's asthma because steroids killed it.
(Immune system is shot due to an autoimmune problem.)
On Ventolin but am crackling a lot, wheezy & apparently have an irritated upper tract.
I don't know anyone who has it & I know nothing at all about it.
Does it come back whenever it feels like it??
Can I do anything to prevent it?
How do I know it's asthma & not another chest infection?
All knowledge & experience welcome please....