Exercise Induced Asthma Help/Advice

Hi all, I have just been diagnosed with EIA but I have no idea how to manage it. My breathing on the peak meter readings has been bad this week even after using the inhaler that I have been given and I feel breathless. Also the other day when I had breathing problems I noticed that the veins on my hands looked really blue (not sure if this is related). On the internet there does not seem to be much information about EIA out there. I just wondered what to expect really. I thought my peak meter readings wouldn't be that low after using the inhaler so I am a bit confused and the doctor couldn't find an asthma leaflet to print for me. Am just hoping for some people that may know how to manage having EIA and if after exercise this can cause breathing problems for longer than a few days as this seems to be an issue for me. Though I have been continuing to exercise whilst feeling short of breath and if that is something I shouldn't be doing then that would be frustrating as I want to get fit and exercise a lot of the time.