Im considering joining the Army, and I need to be free of Asthma for 4 years before joining.
Mike_T says:
I know exactly how you feel, I was in a very similar situation. I remember that I was so nervous at that time and I took it out on everyone around me. I didnt know what could I do until, thanks god, I found Smoke Deter. Now I can look back and laugh on myself and in the same time I remember how helpless I was. I hope that I'll never be in the same situation again

Its more difficult to undo a diagnosis of asthma. Peak flow is certainly not a definitive test. FEV1 which can only be measured by spirometry is also useful. In addition an exercise test may be helpful. In a non asthmatic PF rises and FEV1 remains static. In an asthmatic both may fall.